Task: Program Execution
Input (English): 8971, 6879, h, V, i, 9747, 6037, W, 9627, 8799, X, 5171, U, A, 8661, 4405, L, k, 6905, O
Output (English): 3, 4, 5, 8, 11, 13, 14, 17, 18, 20