Task: Program Execution
Input (English): y, 5311, 499, s, h, 777, 2251, 2431, 9389, K, P, 8849, y, P, 73, G, 5475, 5265, G, 1373, K, h
Output (English): 1, 4, 5, 10, 11, 13, 14, 16, 19, 21, 22