Task: Program Execution
Input (English): 5249, z, 6851, 1757, e, u, f, 3021, 413, 9181, 6751, 3689, f, X, a, 2043, w, h, z, 2127, 1329
Output (English): z, e, u, f, f, X, a, w, h, z, 5249, 6851, 1757, 3021, 413, 9181, 6751, 3689, 2043, 2127, 1329