Task: Program Execution
Input (English): 4, 6, ['2063', '5453', '4399', 'X', 'T', 'K', 'J', '1231', 'P', '4685', '3521', 'W', 'c', '6787', 'q', 'Y', 'n', 'T', 'i', 'j', 'W', 'a', '975', 'j', '2259', 'm', '8385', '9927', 'p']
Output (English): KTX