Task: Program Execution
Input (English): 4, 15, ['7883', 'b', 'J', '3661', '383', 'T', '5191', '9545', 'V', 'L', '3177', 'e', '1757', 'Z', 'Z', '6441', 'E', 'K', 'x']
Output (English): ZZ1757e3177LV95455191T3833661