0.785 398 163 458 219 169 011 004 073 672 148 207 311 199 86 Converted to 64 Bit Double Precision IEEE 754 Binary Floating Point Representation Standard

Convert decimal 0.785 398 163 458 219 169 011 004 073 672 148 207 311 199 86(10) to 64 bit double precision IEEE 754 binary floating point representation standard (1 bit for sign, 11 bits for exponent, 52 bits for mantissa)

What are the steps to convert decimal number
0.785 398 163 458 219 169 011 004 073 672 148 207 311 199 86(10) to 64 bit double precision IEEE 754 binary floating point representation (1 bit for sign, 11 bits for exponent, 52 bits for mantissa)

1. First, convert to binary (in base 2) the integer part: 0.
Divide the number repeatedly by 2.

Keep track of each remainder.

We stop when we get a quotient that is equal to zero.


  • division = quotient + remainder;
  • 0 ÷ 2 = 0 + 0;

2. Construct the base 2 representation of the integer part of the number.

Take all the remainders starting from the bottom of the list constructed above.

0(10) =

0(2)


3. Convert to binary (base 2) the fractional part: 0.785 398 163 458 219 169 011 004 073 672 148 207 311 199 86.

Multiply it repeatedly by 2.

Keep track of each integer part of the results.

Stop when we get a fractional part that is equal to zero.


  • #) multiplying = integer + fractional part;
  • 1) 0.785 398 163 458 219 169 011 004 073 672 148 207 311 199 86 × 2 = 1 + 0.570 796 326 916 438 338 022 008 147 344 296 414 622 399 72;
  • 2) 0.570 796 326 916 438 338 022 008 147 344 296 414 622 399 72 × 2 = 1 + 0.141 592 653 832 876 676 044 016 294 688 592 829 244 799 44;
  • 3) 0.141 592 653 832 876 676 044 016 294 688 592 829 244 799 44 × 2 = 0 + 0.283 185 307 665 753 352 088 032 589 377 185 658 489 598 88;
  • 4) 0.283 185 307 665 753 352 088 032 589 377 185 658 489 598 88 × 2 = 0 + 0.566 370 615 331 506 704 176 065 178 754 371 316 979 197 76;
  • 5) 0.566 370 615 331 506 704 176 065 178 754 371 316 979 197 76 × 2 = 1 + 0.132 741 230 663 013 408 352 130 357 508 742 633 958 395 52;
  • 6) 0.132 741 230 663 013 408 352 130 357 508 742 633 958 395 52 × 2 = 0 + 0.265 482 461 326 026 816 704 260 715 017 485 267 916 791 04;
  • 7) 0.265 482 461 326 026 816 704 260 715 017 485 267 916 791 04 × 2 = 0 + 0.530 964 922 652 053 633 408 521 430 034 970 535 833 582 08;
  • 8) 0.530 964 922 652 053 633 408 521 430 034 970 535 833 582 08 × 2 = 1 + 0.061 929 845 304 107 266 817 042 860 069 941 071 667 164 16;
  • 9) 0.061 929 845 304 107 266 817 042 860 069 941 071 667 164 16 × 2 = 0 + 0.123 859 690 608 214 533 634 085 720 139 882 143 334 328 32;
  • 10) 0.123 859 690 608 214 533 634 085 720 139 882 143 334 328 32 × 2 = 0 + 0.247 719 381 216 429 067 268 171 440 279 764 286 668 656 64;
  • 11) 0.247 719 381 216 429 067 268 171 440 279 764 286 668 656 64 × 2 = 0 + 0.495 438 762 432 858 134 536 342 880 559 528 573 337 313 28;
  • 12) 0.495 438 762 432 858 134 536 342 880 559 528 573 337 313 28 × 2 = 0 + 0.990 877 524 865 716 269 072 685 761 119 057 146 674 626 56;
  • 13) 0.990 877 524 865 716 269 072 685 761 119 057 146 674 626 56 × 2 = 1 + 0.981 755 049 731 432 538 145 371 522 238 114 293 349 253 12;
  • 14) 0.981 755 049 731 432 538 145 371 522 238 114 293 349 253 12 × 2 = 1 + 0.963 510 099 462 865 076 290 743 044 476 228 586 698 506 24;
  • 15) 0.963 510 099 462 865 076 290 743 044 476 228 586 698 506 24 × 2 = 1 + 0.927 020 198 925 730 152 581 486 088 952 457 173 397 012 48;
  • 16) 0.927 020 198 925 730 152 581 486 088 952 457 173 397 012 48 × 2 = 1 + 0.854 040 397 851 460 305 162 972 177 904 914 346 794 024 96;
  • 17) 0.854 040 397 851 460 305 162 972 177 904 914 346 794 024 96 × 2 = 1 + 0.708 080 795 702 920 610 325 944 355 809 828 693 588 049 92;
  • 18) 0.708 080 795 702 920 610 325 944 355 809 828 693 588 049 92 × 2 = 1 + 0.416 161 591 405 841 220 651 888 711 619 657 387 176 099 84;
  • 19) 0.416 161 591 405 841 220 651 888 711 619 657 387 176 099 84 × 2 = 0 + 0.832 323 182 811 682 441 303 777 423 239 314 774 352 199 68;
  • 20) 0.832 323 182 811 682 441 303 777 423 239 314 774 352 199 68 × 2 = 1 + 0.664 646 365 623 364 882 607 554 846 478 629 548 704 399 36;
  • 21) 0.664 646 365 623 364 882 607 554 846 478 629 548 704 399 36 × 2 = 1 + 0.329 292 731 246 729 765 215 109 692 957 259 097 408 798 72;
  • 22) 0.329 292 731 246 729 765 215 109 692 957 259 097 408 798 72 × 2 = 0 + 0.658 585 462 493 459 530 430 219 385 914 518 194 817 597 44;
  • 23) 0.658 585 462 493 459 530 430 219 385 914 518 194 817 597 44 × 2 = 1 + 0.317 170 924 986 919 060 860 438 771 829 036 389 635 194 88;
  • 24) 0.317 170 924 986 919 060 860 438 771 829 036 389 635 194 88 × 2 = 0 + 0.634 341 849 973 838 121 720 877 543 658 072 779 270 389 76;
  • 25) 0.634 341 849 973 838 121 720 877 543 658 072 779 270 389 76 × 2 = 1 + 0.268 683 699 947 676 243 441 755 087 316 145 558 540 779 52;
  • 26) 0.268 683 699 947 676 243 441 755 087 316 145 558 540 779 52 × 2 = 0 + 0.537 367 399 895 352 486 883 510 174 632 291 117 081 559 04;
  • 27) 0.537 367 399 895 352 486 883 510 174 632 291 117 081 559 04 × 2 = 1 + 0.074 734 799 790 704 973 767 020 349 264 582 234 163 118 08;
  • 28) 0.074 734 799 790 704 973 767 020 349 264 582 234 163 118 08 × 2 = 0 + 0.149 469 599 581 409 947 534 040 698 529 164 468 326 236 16;
  • 29) 0.149 469 599 581 409 947 534 040 698 529 164 468 326 236 16 × 2 = 0 + 0.298 939 199 162 819 895 068 081 397 058 328 936 652 472 32;
  • 30) 0.298 939 199 162 819 895 068 081 397 058 328 936 652 472 32 × 2 = 0 + 0.597 878 398 325 639 790 136 162 794 116 657 873 304 944 64;
  • 31) 0.597 878 398 325 639 790 136 162 794 116 657 873 304 944 64 × 2 = 1 + 0.195 756 796 651 279 580 272 325 588 233 315 746 609 889 28;
  • 32) 0.195 756 796 651 279 580 272 325 588 233 315 746 609 889 28 × 2 = 0 + 0.391 513 593 302 559 160 544 651 176 466 631 493 219 778 56;
  • 33) 0.391 513 593 302 559 160 544 651 176 466 631 493 219 778 56 × 2 = 0 + 0.783 027 186 605 118 321 089 302 352 933 262 986 439 557 12;
  • 34) 0.783 027 186 605 118 321 089 302 352 933 262 986 439 557 12 × 2 = 1 + 0.566 054 373 210 236 642 178 604 705 866 525 972 879 114 24;
  • 35) 0.566 054 373 210 236 642 178 604 705 866 525 972 879 114 24 × 2 = 1 + 0.132 108 746 420 473 284 357 209 411 733 051 945 758 228 48;
  • 36) 0.132 108 746 420 473 284 357 209 411 733 051 945 758 228 48 × 2 = 0 + 0.264 217 492 840 946 568 714 418 823 466 103 891 516 456 96;
  • 37) 0.264 217 492 840 946 568 714 418 823 466 103 891 516 456 96 × 2 = 0 + 0.528 434 985 681 893 137 428 837 646 932 207 783 032 913 92;
  • 38) 0.528 434 985 681 893 137 428 837 646 932 207 783 032 913 92 × 2 = 1 + 0.056 869 971 363 786 274 857 675 293 864 415 566 065 827 84;
  • 39) 0.056 869 971 363 786 274 857 675 293 864 415 566 065 827 84 × 2 = 0 + 0.113 739 942 727 572 549 715 350 587 728 831 132 131 655 68;
  • 40) 0.113 739 942 727 572 549 715 350 587 728 831 132 131 655 68 × 2 = 0 + 0.227 479 885 455 145 099 430 701 175 457 662 264 263 311 36;
  • 41) 0.227 479 885 455 145 099 430 701 175 457 662 264 263 311 36 × 2 = 0 + 0.454 959 770 910 290 198 861 402 350 915 324 528 526 622 72;
  • 42) 0.454 959 770 910 290 198 861 402 350 915 324 528 526 622 72 × 2 = 0 + 0.909 919 541 820 580 397 722 804 701 830 649 057 053 245 44;
  • 43) 0.909 919 541 820 580 397 722 804 701 830 649 057 053 245 44 × 2 = 1 + 0.819 839 083 641 160 795 445 609 403 661 298 114 106 490 88;
  • 44) 0.819 839 083 641 160 795 445 609 403 661 298 114 106 490 88 × 2 = 1 + 0.639 678 167 282 321 590 891 218 807 322 596 228 212 981 76;
  • 45) 0.639 678 167 282 321 590 891 218 807 322 596 228 212 981 76 × 2 = 1 + 0.279 356 334 564 643 181 782 437 614 645 192 456 425 963 52;
  • 46) 0.279 356 334 564 643 181 782 437 614 645 192 456 425 963 52 × 2 = 0 + 0.558 712 669 129 286 363 564 875 229 290 384 912 851 927 04;
  • 47) 0.558 712 669 129 286 363 564 875 229 290 384 912 851 927 04 × 2 = 1 + 0.117 425 338 258 572 727 129 750 458 580 769 825 703 854 08;
  • 48) 0.117 425 338 258 572 727 129 750 458 580 769 825 703 854 08 × 2 = 0 + 0.234 850 676 517 145 454 259 500 917 161 539 651 407 708 16;
  • 49) 0.234 850 676 517 145 454 259 500 917 161 539 651 407 708 16 × 2 = 0 + 0.469 701 353 034 290 908 519 001 834 323 079 302 815 416 32;
  • 50) 0.469 701 353 034 290 908 519 001 834 323 079 302 815 416 32 × 2 = 0 + 0.939 402 706 068 581 817 038 003 668 646 158 605 630 832 64;
  • 51) 0.939 402 706 068 581 817 038 003 668 646 158 605 630 832 64 × 2 = 1 + 0.878 805 412 137 163 634 076 007 337 292 317 211 261 665 28;
  • 52) 0.878 805 412 137 163 634 076 007 337 292 317 211 261 665 28 × 2 = 1 + 0.757 610 824 274 327 268 152 014 674 584 634 422 523 330 56;
  • 53) 0.757 610 824 274 327 268 152 014 674 584 634 422 523 330 56 × 2 = 1 + 0.515 221 648 548 654 536 304 029 349 169 268 845 046 661 12;

We didn't get any fractional part that was equal to zero. But we had enough iterations (over Mantissa limit) and at least one integer that was different from zero => FULL STOP (Losing precision - the converted number we get in the end will be just a very good approximation of the initial one).


4. Construct the base 2 representation of the fractional part of the number.

Take all the integer parts of the multiplying operations, starting from the top of the constructed list above:


0.785 398 163 458 219 169 011 004 073 672 148 207 311 199 86(10) =

0.1100 1001 0000 1111 1101 1010 1010 0010 0110 0100 0011 1010 0011 1(2)

5. Positive number before normalization:

0.785 398 163 458 219 169 011 004 073 672 148 207 311 199 86(10) =

0.1100 1001 0000 1111 1101 1010 1010 0010 0110 0100 0011 1010 0011 1(2)

6. Normalize the binary representation of the number.

Shift the decimal mark 1 positions to the right, so that only one non zero digit remains to the left of it:


0.785 398 163 458 219 169 011 004 073 672 148 207 311 199 86(10) =

0.1100 1001 0000 1111 1101 1010 1010 0010 0110 0100 0011 1010 0011 1(2) =

0.1100 1001 0000 1111 1101 1010 1010 0010 0110 0100 0011 1010 0011 1(2) × 20 =

1.1001 0010 0001 1111 1011 0101 0100 0100 1100 1000 0111 0100 0111(2) × 2-1


7. Up to this moment, there are the following elements that would feed into the 64 bit double precision IEEE 754 binary floating point representation:

Sign 0 (a positive number)

Exponent (unadjusted): -1

Mantissa (not normalized):
1.1001 0010 0001 1111 1011 0101 0100 0100 1100 1000 0111 0100 0111


8. Adjust the exponent.

Use the 11 bit excess/bias notation:


Exponent (adjusted) =

Exponent (unadjusted) + 2(11-1) - 1 =

-1 + 2(11-1) - 1 =

(-1 + 1 023)(10) =

1 022(10)


9. Convert the adjusted exponent from the decimal (base 10) to 11 bit binary.

Use the same technique of repeatedly dividing by 2:


  • division = quotient + remainder;
  • 1 022 ÷ 2 = 511 + 0;
  • 511 ÷ 2 = 255 + 1;
  • 255 ÷ 2 = 127 + 1;
  • 127 ÷ 2 = 63 + 1;
  • 63 ÷ 2 = 31 + 1;
  • 31 ÷ 2 = 15 + 1;
  • 15 ÷ 2 = 7 + 1;
  • 7 ÷ 2 = 3 + 1;
  • 3 ÷ 2 = 1 + 1;
  • 1 ÷ 2 = 0 + 1;

10. Construct the base 2 representation of the adjusted exponent.

Take all the remainders starting from the bottom of the list constructed above.


Exponent (adjusted) =

1022(10) =

011 1111 1110(2)


11. Normalize the mantissa.

a) Remove the leading (the leftmost) bit, since it's allways 1, and the decimal point, if the case.

b) Adjust its length to 52 bits, only if necessary (not the case here).


Mantissa (normalized) =

1. 1001 0010 0001 1111 1011 0101 0100 0100 1100 1000 0111 0100 0111 =

1001 0010 0001 1111 1011 0101 0100 0100 1100 1000 0111 0100 0111


12. The three elements that make up the number's 64 bit double precision IEEE 754 binary floating point representation:

Sign (1 bit) =
0 (a positive number)

Exponent (11 bits) =
011 1111 1110

Mantissa (52 bits) =
1001 0010 0001 1111 1011 0101 0100 0100 1100 1000 0111 0100 0111


Decimal number 0.785 398 163 458 219 169 011 004 073 672 148 207 311 199 86 converted to 64 bit double precision IEEE 754 binary floating point representation:

0 - 011 1111 1110 - 1001 0010 0001 1111 1011 0101 0100 0100 1100 1000 0111 0100 0111

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How to convert numbers from the decimal system (base ten) to 64 bit double precision IEEE 754 binary floating point standard

Follow the steps below to convert a base 10 decimal number to 64 bit double precision IEEE 754 binary floating point:

  • 1. If the number to be converted is negative, start with its the positive version.
  • 2. First convert the integer part. Divide repeatedly by 2 the positive representation of the integer number that is to be converted to binary, until we get a quotient that is equal to zero, keeping track of each remainder.
  • 3. Construct the base 2 representation of the positive integer part of the number, by taking all the remainders from the previous operations, starting from the bottom of the list constructed above. Thus, the last remainder of the divisions becomes the first symbol (the leftmost) of the base two number, while the first remainder becomes the last symbol (the rightmost).
  • 4. Then convert the fractional part. Multiply the number repeatedly by 2, until we get a fractional part that is equal to zero, keeping track of each integer part of the results.
  • 5. Construct the base 2 representation of the fractional part of the number, by taking all the integer parts of the multiplying operations, starting from the top of the list constructed above (they should appear in the binary representation, from left to right, in the order they have been calculated).
  • 6. Normalize the binary representation of the number, shifting the decimal mark (the decimal point) "n" positions either to the left, or to the right, so that only one non zero digit remains to the left of the decimal mark.
  • 7. Adjust the exponent in 11 bit excess/bias notation and then convert it from decimal (base 10) to 11 bit binary, by using the same technique of repeatedly dividing by 2, as shown above:
    Exponent (adjusted) = Exponent (unadjusted) + 2(11-1) - 1
  • 8. Normalize mantissa, remove the leading (leftmost) bit, since it's allways '1' (and the decimal mark, if the case) and adjust its length to 52 bits, either by removing the excess bits from the right (losing precision...) or by adding extra bits set on '0' to the right.
  • 9. Sign (it takes 1 bit) is either 1 for a negative or 0 for a positive number.

Example: convert the negative number -31.640 215 from the decimal system (base ten) to 64 bit double precision IEEE 754 binary floating point:

  • 1. Start with the positive version of the number:

    |-31.640 215| = 31.640 215

  • 2. First convert the integer part, 31. Divide it repeatedly by 2, keeping track of each remainder, until we get a quotient that is equal to zero:
    • division = quotient + remainder;
    • 31 ÷ 2 = 15 + 1;
    • 15 ÷ 2 = 7 + 1;
    • 7 ÷ 2 = 3 + 1;
    • 3 ÷ 2 = 1 + 1;
    • 1 ÷ 2 = 0 + 1;
    • We have encountered a quotient that is ZERO => FULL STOP
  • 3. Construct the base 2 representation of the integer part of the number by taking all the remainders of the previous dividing operations, starting from the bottom of the list constructed above:

    31(10) = 1 1111(2)

  • 4. Then, convert the fractional part, 0.640 215. Multiply repeatedly by 2, keeping track of each integer part of the results, until we get a fractional part that is equal to zero:
    • #) multiplying = integer + fractional part;
    • 1) 0.640 215 × 2 = 1 + 0.280 43;
    • 2) 0.280 43 × 2 = 0 + 0.560 86;
    • 3) 0.560 86 × 2 = 1 + 0.121 72;
    • 4) 0.121 72 × 2 = 0 + 0.243 44;
    • 5) 0.243 44 × 2 = 0 + 0.486 88;
    • 6) 0.486 88 × 2 = 0 + 0.973 76;
    • 7) 0.973 76 × 2 = 1 + 0.947 52;
    • 8) 0.947 52 × 2 = 1 + 0.895 04;
    • 9) 0.895 04 × 2 = 1 + 0.790 08;
    • 10) 0.790 08 × 2 = 1 + 0.580 16;
    • 11) 0.580 16 × 2 = 1 + 0.160 32;
    • 12) 0.160 32 × 2 = 0 + 0.320 64;
    • 13) 0.320 64 × 2 = 0 + 0.641 28;
    • 14) 0.641 28 × 2 = 1 + 0.282 56;
    • 15) 0.282 56 × 2 = 0 + 0.565 12;
    • 16) 0.565 12 × 2 = 1 + 0.130 24;
    • 17) 0.130 24 × 2 = 0 + 0.260 48;
    • 18) 0.260 48 × 2 = 0 + 0.520 96;
    • 19) 0.520 96 × 2 = 1 + 0.041 92;
    • 20) 0.041 92 × 2 = 0 + 0.083 84;
    • 21) 0.083 84 × 2 = 0 + 0.167 68;
    • 22) 0.167 68 × 2 = 0 + 0.335 36;
    • 23) 0.335 36 × 2 = 0 + 0.670 72;
    • 24) 0.670 72 × 2 = 1 + 0.341 44;
    • 25) 0.341 44 × 2 = 0 + 0.682 88;
    • 26) 0.682 88 × 2 = 1 + 0.365 76;
    • 27) 0.365 76 × 2 = 0 + 0.731 52;
    • 28) 0.731 52 × 2 = 1 + 0.463 04;
    • 29) 0.463 04 × 2 = 0 + 0.926 08;
    • 30) 0.926 08 × 2 = 1 + 0.852 16;
    • 31) 0.852 16 × 2 = 1 + 0.704 32;
    • 32) 0.704 32 × 2 = 1 + 0.408 64;
    • 33) 0.408 64 × 2 = 0 + 0.817 28;
    • 34) 0.817 28 × 2 = 1 + 0.634 56;
    • 35) 0.634 56 × 2 = 1 + 0.269 12;
    • 36) 0.269 12 × 2 = 0 + 0.538 24;
    • 37) 0.538 24 × 2 = 1 + 0.076 48;
    • 38) 0.076 48 × 2 = 0 + 0.152 96;
    • 39) 0.152 96 × 2 = 0 + 0.305 92;
    • 40) 0.305 92 × 2 = 0 + 0.611 84;
    • 41) 0.611 84 × 2 = 1 + 0.223 68;
    • 42) 0.223 68 × 2 = 0 + 0.447 36;
    • 43) 0.447 36 × 2 = 0 + 0.894 72;
    • 44) 0.894 72 × 2 = 1 + 0.789 44;
    • 45) 0.789 44 × 2 = 1 + 0.578 88;
    • 46) 0.578 88 × 2 = 1 + 0.157 76;
    • 47) 0.157 76 × 2 = 0 + 0.315 52;
    • 48) 0.315 52 × 2 = 0 + 0.631 04;
    • 49) 0.631 04 × 2 = 1 + 0.262 08;
    • 50) 0.262 08 × 2 = 0 + 0.524 16;
    • 51) 0.524 16 × 2 = 1 + 0.048 32;
    • 52) 0.048 32 × 2 = 0 + 0.096 64;
    • 53) 0.096 64 × 2 = 0 + 0.193 28;
    • We didn't get any fractional part that was equal to zero. But we had enough iterations (over Mantissa limit = 52) and at least one integer part that was different from zero => FULL STOP (losing precision...).
  • 5. Construct the base 2 representation of the fractional part of the number, by taking all the integer parts of the previous multiplying operations, starting from the top of the constructed list above:

    0.640 215(10) = 0.1010 0011 1110 0101 0010 0001 0101 0111 0110 1000 1001 1100 1010 0(2)

  • 6. Summarizing - the positive number before normalization:

    31.640 215(10) = 1 1111.1010 0011 1110 0101 0010 0001 0101 0111 0110 1000 1001 1100 1010 0(2)

  • 7. Normalize the binary representation of the number, shifting the decimal mark 4 positions to the left so that only one non-zero digit stays to the left of the decimal mark:

    31.640 215(10) =
    1 1111.1010 0011 1110 0101 0010 0001 0101 0111 0110 1000 1001 1100 1010 0(2) =
    1 1111.1010 0011 1110 0101 0010 0001 0101 0111 0110 1000 1001 1100 1010 0(2) × 20 =
    1.1111 1010 0011 1110 0101 0010 0001 0101 0111 0110 1000 1001 1100 1010 0(2) × 24

  • 8. Up to this moment, there are the following elements that would feed into the 64 bit double precision IEEE 754 binary floating point representation:

    Sign: 1 (a negative number)

    Exponent (unadjusted): 4

    Mantissa (not-normalized): 1.1111 1010 0011 1110 0101 0010 0001 0101 0111 0110 1000 1001 1100 1010 0

  • 9. Adjust the exponent in 11 bit excess/bias notation and then convert it from decimal (base 10) to 11 bit binary (base 2), by using the same technique of repeatedly dividing it by 2, as shown above:

    Exponent (adjusted) = Exponent (unadjusted) + 2(11-1) - 1 = (4 + 1023)(10) = 1027(10) =
    100 0000 0011(2)

  • 10. Normalize mantissa, remove the leading (leftmost) bit, since it's allways '1' (and the decimal sign) and adjust its length to 52 bits, by removing the excess bits, from the right (losing precision...):

    Mantissa (not-normalized): 1.1111 1010 0011 1110 0101 0010 0001 0101 0111 0110 1000 1001 1100 1010 0

    Mantissa (normalized): 1111 1010 0011 1110 0101 0010 0001 0101 0111 0110 1000 1001 1100

  • Conclusion:

    Sign (1 bit) = 1 (a negative number)

    Exponent (8 bits) = 100 0000 0011

    Mantissa (52 bits) = 1111 1010 0011 1110 0101 0010 0001 0101 0111 0110 1000 1001 1100

  • Number -31.640 215, converted from decimal system (base 10) to 64 bit double precision IEEE 754 binary floating point =
    1 - 100 0000 0011 - 1111 1010 0011 1110 0101 0010 0001 0101 0111 0110 1000 1001 1100