- case Z | 1: st = Z1; break;
- case Z1 | 0: st = Z; printf("+ %lu\n", i - 1); break;
- case Z1 | 1: st = X; printf("- %lu\n", i - 1); break;
- case X | 0: st = X0; break;
- case X0 | 1: st = X; printf("- %lu\n", i - 1); break;
- case X0 | 0: st = Z; printf("+ %lu\n", i - 1); break;
+ case Z | 1: st = Z1; printf("\t-> Z1\n"); break;
+ case Z1 | 0: st = Z; printf("+ %lu\t-> Z\n", i - 1); break;
+ case Z1 | 1: st = X; printf("- %lu\t-> X\n", i - 1); break;
+ case X | 0: st = X0; printf("\t-> X0\n"); break;
+ case X0 | 1: st = X; printf("- %lu\t-> X\n", i - 1); break;
+ case X0 | 0: st = Z; printf("+ %lu\t-> Z\n", i - 1); break;