Task: Program Execution
Input (English): K, 441, A, d, b, 9903, K, 9411, 159, a, 3009, 141, r, 8663, z, 2223, 8927, t, 4947, O
Output (English): K, A, d, b, K, a, r, z, t, O, 441, 9903, 9411, 159, 3009, 141, 8663, 2223, 8927, 4947