Task: Program Execution
Input (English): O, 7523, H, F, a, h, L, e, c, E, C, v, 9501, 6253, A, 6857, 4389, 6925, 555, k, 2829, 2943, 3095, a
Output (English): O, H, F, a, h, L, e, c, E, C, v, A, k, a, 7523, 9501, 6253, 6857, 4389, 6925, 555, 2829, 2943, 3095