Task: Program Execution
Input (English): x, y, X, M, y, 2157, 4169, q, 7541, 8799, m, a, N, 9469, f, x, 3451, 5143, 6153, 629, x, Y
Output (English): 6, 7, 9, 10, 14, 17, 18, 19, 20