Task: Program Execution
Input (English): 3, 18, ['287', '1179', '4531', 'H', 'c', '1057', '7889', 'x', 'B', '7389', 'C', 'w', '1823', 'c', 'k', '5917', 'U', '6473', 'Q', 'E']
Output (English): 3746U7195kc3281wC9837Bx98877501cH1354