Task: Program Execution
Input (English): 9, 10, ['X', '7651', '1063', 'O', 'q', 'A', 'x', '3121', '8235', 'J', 'w', 'P', '5241', 'U', '173', '6361', '271', '9637', 'X', '323', '2279', 'r', 'j', 'R']
Output (English): J5328