Task: Program Execution
Input (English): 3, ['3909', '7245', 'u', 'f', 'J', '715', 'h', '1531', 'R', 'd', 'P', 'B', '4059', 'n', '3481', 'A', 'N', 'k', 'J', 'r', 'U', '77']
Output (English): 3909, 7245, u