Task: Program Execution
Input (English): 9, ['U', '6351', 'd', '3437', '3409', 'J', '6463', 'M', 'l', 'E', 'C', 'p', 'e', '191', '9981', '577', 'H', '7843', 'x', 'T', 'f', '5593', '3291', 'P', '1501', '305', '7519', '9553', '2173', '4851', '5703', 'e', '1577']
Output (English): U, E, x, 9553