Task: Program Execution
Input (English): I, z, u, r, X, 4871, 1271, z, 8243, 5919, u, 4921, 2781, 3889, l, a, z
Output (English): I, z, u, r, X, z, u, l, a, z, 4871, 1271, 8243, 5919, 4921, 2781, 3889