Task: Program Execution
Input (English): 12, 21, ['2269', '5319', 'O', '9691', 'U', 'k', '8753', '413', '7045', '5695', '4607', '5481', '9035', '1653', 'L', 'r', 'G', '7349', 'V', '9167', '7789', '6399', 'A']
Output (English): 98777619V9437GrL356153091845