Task: Program Execution
Input (English): 7, 9, ['R', 'j', 'U', '9389', '8533', '6445', '3967', 'k', '821', 'n', '8535', '3531', 'G', '9267', '5723', 'r', '9171', 'l', 'H', 'Z', 'I', '8825', '5573', 'S', '2023']
Output (English): 3967k821