Task: Program Execution
Input (English): 6915, z, U, 8631, 5895, 6113, a, D, 8043, W, 3827, R, B, 1799, X
Output (English): z, U, a, D, W, R, B, X, 6915, 8631, 5895, 6113, 8043, 3827, 1799