Task: Program Execution
Input (English): 5163, n, 3657, t, 9033, 3907, 721, x, 3153, 4093, 6587, 1405, 7805, i, 9407, b, 2941, 639, 3751, 5879, U, W, 7515
Output (English): n, t, x, i, b, U, W, 5163, 3657, 9033, 3907, 721, 3153, 4093, 6587, 1405, 7805, 9407, 2941, 639, 3751, 5879, 7515