maximum number of sorted subset of 13 length octal-string wile be 1948.
then this can be solve by 1948194826 dp. but you have to pre calculate the every combination of concatanation.
maximum number of sorted subset of 13 length octal-string wile be 1948.
then this can be solve by 1948194826 dp. but you have to pre calculate the every combination of concatanation.
