Task: Program Execution
Input (English): U, s, 8569, k, r, 7715, 8123, c, t, M, 6689, 4673, j, F, 4613, F, F, n, 1957, 2231, k, 3701, 8507
Output (English): U, s, k, r, c, t, M, j, F, F, F, n, k