Task: Program Execution
Input (English): v, 8507, G, a, 7211, Y, k, N, 5129, 7655, x, 8403, 321, E, 8737, 3171, L, 1323, q, f, 3735, Y
Output (English): 8507, 7211, 5129, 7655, 8403, 321, 8737, 3171, 1323, 3735