Task: Program Execution
Input (English): 3, 4, ['2369', '8203', 'P', 'M', '1783', '3553', 'J', 'n', '1273', 'l', 'K', '9721', '4733', '6405', '5283', 'm', 'i', 'S', 't', '1645', '2817', 'T', '3659', '3649', 'c', 'b']
Output (English): MP