Task: Program Execution
Input (English): 7653, 2733, 2501, S, y, 5809, l, a, 4871, C, 1451, P, h, a, 4545, V, t, O, 6549
Output (English): 4, 5, 7, 8, 10, 12, 13, 14, 16, 17, 18