Task: Program Execution
Input (English): 15, 22, ['N', '791', '8077', 'k', 'T', '171', 'T', 'b', 'w', 'h', '2109', '8001', 's', 'C', 'U', '8653', '3783', '5959', 'W', 'u', '2459', 'v', 'U']
Output (English): v2459uW595937838653U