Task: Program Execution
Input (English): H, 6737, 4939, C, 3139, 1449, d, 4267, i, 4153, A, P, n, X, N, Z, 6077, y, 2697, x, 8689, 8485
Output (English): H, C, d, i, A, P, n, X, N, Z, y, x, 6737, 4939, 3139, 1449, 4267, 4153, 6077, 2697, 8689, 8485