Task: Program Execution
Input (English): 7581, d, u, 2761, 6133, 7663, 1333, v, 245, n, r, 1443, U, 5659, 37
Output (English): d, u, v, n, r, U, 7581, 2761, 6133, 7663, 1333, 245, 1443, 5659, 37