Task: Program Execution
Input (English): 3661, o, 7967, 4639, r, 8951, E, l, l, r, 8911, U, 5315, 2463, 8091, x, P, i, p, l
Output (English): o, r, E, l, l, r, U, x, P, i, p, l, 3661, 7967, 4639, 8951, 8911, 5315, 2463, 8091