Task: Program Execution
Input (English): 4, 15, ['3143', 'Y', '6113', 'P', '4263', 'X', '6983', 'n', 'g', 'K', '3673', 'k', 'M', '9469', '2769', '2067', '545', '1287']
Output (English): 96729649Mk3763Kgn3896X3624P