Task: Program Execution
Input (English): B, C, 179, 579, 5053, G, R, 7037, P, B, v, 297, M, F, 7269, 7771, 1013, 7779, e, m, 4605
Output (English): 1, 2, 6, 7, 9, 10, 11, 13, 14, 19, 20