Stores left out horizontal and vertical separators
INDENT list1 = [ 0 ] * len ( s1 ) NEW_LINE list2 = [ 0 ] * len ( s2 ) ; NEW_LINE i = 0 ; NEW_LINE for it1 in s1 : NEW_LINE INDENT list1 [ i ] = it1 ; NEW_LINE i += 1 NEW_LINE DEDENT i = 0 ; NEW_LINE for it2 in s2 : NEW_LINE INDENT list2 [ i ] = it2 NEW_LINE i += 1 NEW_LINE DEDENT DEDENT