Task: Program Execution
Input (English): 6, 21, ['7969', '6923', 'z', 'u', 'J', '897', 'X', 'z', 'Z', '8349', 'R', '6195', '5997', 'e', 'B', '6869', '6805', '6759', '4843', '5145', 'G', '5771', 'W', '8439', '3487', '4401', '3371', '5965']
Output (English): 897XzZ8349R61955997eB68696805675948435145G