Task: Program Execution
Input (English): 9341, 8225, 7659, N, 9607, 8865, C, C, y, 9291, x, 53, s, o, B, 7465, m, k, G, r
Output (English): 4, 7, 8, 9, 11, 13, 14, 15, 17, 18, 19, 20