Task: Program Execution
Input (English): Z, 5087, g, 6551, F, k, 9415, 3297, X, U, x, 4447, 6715, c, n, O, 91, e, 387, S, 5867, y
Output (English): Z, g, F, k, X, U, x, c, n, O, e, S, y, 5087, 6551, 9415, 3297, 4447, 6715, 91, 387, 5867