Task: Program Execution
Input (English): 8853, 7721, o, 7009, z, u, l, 1325, z, x, f, D, 2075, 9321, J, L, i, F, 7255, 5123, 6625, S, J
Output (English): 3, 5, 6, 7, 9, 10, 11, 12, 15, 16, 17, 18, 22, 23