Task: Program Execution
Input (English): a, 9033, 5709, 3079, Y, k, V, 3421, O, W, t, 2001, 5135, j, 1379, E, 2629, K, y, 9403, N, w, x, 7427
Output (English): a, Y, k, V, O, W, t, j, E, K, y, N, w, x