Task: Program Execution
Input (English): 6349, 4025, e, 2923, 2507, E, j, 3411, 8867, 1547, 9523, 8151, 6207, z, W, b, 3273, 5157, y, 7501
Output (English): e, E, j, z, W, b, y, 6349, 4025, 2923, 2507, 3411, 8867, 1547, 9523, 8151, 6207, 3273, 5157, 7501