Task: Program Execution
Input (English): 2, 10, ['1637', 'G', 'Q', '1783', 'b', '4425', '5151', '833', 'u', '6131', '3101', 'x', 'a', '4695', 'L', '3399', '4645', 'D', '8907', '1527', '5797', 'f', '2839', 'b']
Output (English): 6131u83351514425b1783QG