printf("%lld >> %d = %lld\n", c, 33, shr_ll(c, 33));
printf("abs(%lld) = %lld\n", c, abs_ll(c));
printf("neg(%lld) = %lld\n", b, neg_ll(b));
printf("%lld >> %d = %lld\n", c, 33, shr_ll(c, 33));
printf("abs(%lld) = %lld\n", c, abs_ll(c));
printf("neg(%lld) = %lld\n", b, neg_ll(b));