Task: Program Execution
Input (English): D, 1559, u, n, 1283, 8385, R, 8409, 5723, v, x, 5597, 5263, 2473, r, 441, y, 1907
Output (English): D, u, n, R, v, x, r, y, 1559, 1283, 8385, 8409, 5723, 5597, 5263, 2473, 441, 1907