Task: Program Execution
Input (English): 7863, O, P, U, o, 8105, 1399, P, K, d, 6451, 1673, b, f, T, 9821, o, 7155, 9393, 7409, 9609, w
Output (English): 7863, 8105, 1399, 6451, 1673, 9821, 7155, 9393, 7409, 9609