Task: Program Execution
Input (English): 6, 21, ['5261', '9687', '915', '1683', '7267', '3385', 'l', 'K', '2067', '2691', '1905', 'o', 'A', 'q', '6929', 'c', '6853', 'R', '5129', 'G', 'M', '979', 'f', 'J']
Output (English): 3385lK206726911905oAq6929c6853R5129GM