Task: Program Execution
Input (English): 7815, 8251, 5095, 9345, o, q, 3991, U, 9689, d, 2607, V, M, E, 2985, K, 8269, i, I, 7249, 6225, 8013, 493
Output (English): 1, 2, 3, 4, 7, 9, 11, 15, 17, 20, 21, 22, 23