Task: Program Execution
Input (English): 6831, w, 237, 4625, r, Y, 5389, Z, u, 6217, 6243, S, 1571, 571, F, U, 6137, 5201, a, 2169, 8099, o, P
Output (English): 2, 5, 6, 8, 9, 12, 15, 16, 19, 22, 23