Task: Program Execution
Input (English): 5, 5, ['2051', '5285', '6991', 'K', 'O', '5023', '5295', '6379', '47', 'b', 'I', 'x', 'p', '6715', 'I', 'T', 't', '2679', '7473', 'F', 'h', '8773', '1387', 'd', 'H', 'n', 'y']
Output (English): O