Task: Program Execution
Input (English): U, f, 9863, 7409, A, R, 1683, 6411, x, 885, c, 8517, r, k, e, e, 5577, 777, q
Output (English): U, f, A, R, x, c, r, k, e, e, q, 9863, 7409, 1683, 6411, 885, 8517, 5577, 777