Task: Program Execution
Input (English): 3, 10, ['o', '2519', '4657', '9443', 'B', 'Q', '5983', '6949', '689', '2837', 'I', '1497', 'b', 'r', 'r', '2283', 'X', 'J', '9567', 'f']
Output (English): 4657, b