Task: Program Execution
Input (English): 3741, 9027, 9181, D, S, 9287, m, 1541, 6943, 43, h, E, f, 7983, 267, 5141, H, C, k, 9855, 8151
Output (English): 1, 2, 3, 6, 8, 9, 10, 14, 15, 16, 20, 21