Task: Program Execution
Input (English): 611, 4339, 8097, z, 3849, W, 4651, 3423, j, l, 7715, s, 7625, B, M, T, 6643, Q, T, 6973
Output (English): 4, 6, 9, 10, 12, 14, 15, 16, 18, 19