Task: Program Execution
Input (English): 1, 20, ['k', '6329', '4273', 'C', 'i', 'J', '3175', '5517', 'L', 'v', 't', '4993', '6207', 'r', '4751', '1791', 'c', '4883', 'K', 'u', 'q', 'F', 'j']
Output (English): uK3884c19711574r70263994tvL71555713JiC37249236k