Task: Program Execution
Input (English): 5, 21, ['K', 'X', '8727', '7925', 'c', '145', '4391', '245', 'I', '5111', 'v', 'O', '5729', '7929', '1791', 'r', 'u', '925', 'Y', 'G', '4013']
Output (English): 3104GY529ur197192979275Ov1115I5421934541c