Task: Program Execution
Input (English): 163, 8919, a, 4827, N, I, 5525, I, 7349, M, 7723, 7031, O, 4827, 4971, 809, O, B, 6263, P, S
Output (English): 3, 5, 6, 8, 10, 13, 17, 18, 20, 21