Task: Program Execution
Input (English): 4, 13, ['u', '5315', '2273', '4711', '4697', 'I', 'Q', '7155', '25', 'D', '9879', 'q', 'j', 'Q', '1909', 'U', 'H', '6857', 'W']
Output (English): jq9879D257155QI46974711