Task: Program Execution
Input (English): 1653, 6519, V, l, M, 4389, 1625, 5685, 3015, 6675, 9455, v, a, o, H, 8943, Z, 1669, P, V, Y
Output (English): 3, 4, 5, 12, 13, 14, 15, 17, 19, 20, 21