Task: Program Execution
Input (English): 4367, 3575, C, 2285, 1943, o, Q, J, 2313, f, d, 3697, u, 6335, k, 4949, 3951, 8917
Output (English): 1, 2, 4, 5, 9, 12, 14, 16, 17, 18