Task: Program Execution
Input (English): 3515, H, x, 6123, Y, 5075, 4165, 4073, E, y, O, 9695, 6281, V, 3573, 6243, B, 8413, P, 8569, l
Output (English): 1, 4, 6, 7, 8, 12, 13, 15, 16, 18, 20