Task: Program Execution
Input (English): 2, 7, ['Z', 'b', 't', '8509', 'L', '6363', '3887', '8233', '6061', '5437', '6641', '1223', 'P', 'W', '9829', '3267', '7931', 'J', '4321', 'K', '5451']
Output (English): b, 6061, 3267