Task: Program Execution
Input (English): 465, o, Z, 4975, A, x, k, 6975, 3989, I, G, r, 9327, J, 9733, g, V, 1071, 8305, 3761, 3649, r, M, O
Output (English): 1, 4, 8, 9, 13, 15, 18, 19, 20, 21