Task: Program Execution
Input (English): 4, 2, ['8687', '1931', 's', '781', 'C', 'z', 'P', 'p', 'b', 'O', '5591', 'X', 'G', 'G', 'M', '8991', '9893', 'E', 'n', 'F', '7637', 'M']
Output (English): 781, z, p, O, X, G, 8991, E, F, M