Task: Program Execution
Input (English): w, 8119, 4143, I, 8043, 853, L, 9785, 1745, J, 5013, 5775, Q, 9253, 6735, H, B, i, Q, 4807, W
Output (English): 2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 20