Task: Program Execution
Input (English): 18, 20, ['U', 'R', '5385', 'k', '4571', '3189', 'E', '9215', 'P', '2727', '3063', 'C', 'H', 'S', '2789', '5309', 'S', 'W', '7199', 'P', 'F', '5885', 'I', 's']
Output (English): P9917W