Task: Program Execution
Input (English): 7851, I, 9065, 6747, 8723, A, 227, 4871, k, 509, 7629, b, 2371, 8219, Q, 1869, 449, s
Output (English): 1, 3, 4, 5, 7, 8, 10, 11, 13, 14, 16, 17