10101000000000100000000000000000 0. -21 to c 10101000000001100000000000000000 1. c to 21 10101000000000100000000000000000 2. -21 to c 01101000000000010000000000000000 3. Sub. 22 00000000000000110000000000000000 4. Test 00001000000001000000000000000000 5. Add 16 to CI 00101000000000000000000000000000 6. 20 to CI 00001000000000010000000000000000 7. Sub. 16 00000000000000110000000000000000 8. Test 11001000000000000000000000000000 9. 19 to CI 10001000000000100000000000000000 10. -17 to c 00000000000001110000000000000000 11. Stop 01001000000000100000000000000000 12. -18 to c 00000000000001110000000000000000 13. Stop 00001000000000100000000000000000 14. -16 to c 00000000000001110000000000000000 15. Stop 10000000000000000000000000000000 16. 1 00000000000000000000000000000000 17. 0 11111111111111111111111111111111 18. -1 11010000000000000000000000000000 19. 11 10110000000000000000000000000000 20. 13