text: Stores left out horizontal and vertical separators
code: int list1 [ s1 . size ( ) ] ; int list2 [ s2 . size ( ) ] ; int i = 0 ; for ( auto it1 = s1 . begin ( ) ; it1 != s1 . end ( ) ; it1 ++ ) { list1 [ i ++ ] = * it1 ; } i = 0 ; for ( auto it2 = s2 . begin ( ) ; it2 != s2 . end ( ) ; it2 ++ ) { list2 [ i ++ ] = * it2 ; }