Task: Program Execution
Input (English): 6, 7, ['5229', 'A', 'P', 'D', '3667', 'Z', '4997', 'K', 's', 'I', 'A', '3327', '7421', '2259', 'T', 'n', 'w', '961', 'z', 'T', '6999']
Output (English): 7994Z