Task: Program Execution
Input (English): 2, 13, ['2643', 'v', 'C', 'F', 'R', '3851', 'Z', '5503', 'U', 'm', 'V', 'b', '9535', '2357', '165', 'J', '1603', '5417', '4655']
Output (English): vCFR3851Z5503UmVb9535