Task: Program Execution
Input (English): 9, 15, ['5019', '7519', '2791', 'u', '9851', 'F', 'N', '9569', 'b', 'X', '519', '1669', 'D', '8559', 'm', 'K', 'z', 'K']
Output (English): m8559D1669519Xb