Task: Program Execution
Input (English): 1307, A, 2883, 8557, 5965, N, 4943, 7977, 4137, A, p, U, 3285, 305, Y, k, 8715, R, y, s, K, 8247
Output (English): 2, 6, 10, 11, 12, 15, 16, 18, 19, 20, 21