Task: Program Execution
Input (English): 7931, t, I, 767, 2929, 8095, Z, S, d, h, I, 99, r, 399, L, K, A, H, 6703, s, l
Output (English): 2, 3, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 20, 21