Task: Program Execution
Input (English): 8809, c, Z, 6465, 5089, 3877, 5559, 9989, X, 8889, 4613, O, 2431, x, a, 2199, E, x, 2659, c, O, 7869, H, C
Output (English): c, Z, X, O, x, a, E, x, c, O, H, C, 8809, 6465, 5089, 3877, 5559, 9989, 8889, 4613, 2431, 2199, 2659, 7869