Task: Program Execution
Input (English): 6, 13, ['J', 'N', 'b', '4291', 'h', '547', 'k', 'M', '4577', 'i', 'M', '7611', 'Y', 'c', '6201', 'h', '275', 'u', '1845', 'N', '3443']
Output (English): Y1167Mi7754Mk745