#!/usr/bin/env python

import sys

import empty

def ul_new():
	e = empty.new()
	e.lst = [ [] ]
	e.ids = []

	get_spc = lambda s: 1 + get_spc( s[ 1 : ] ) if s and s[ 0 ] == ' ' else 0

	def cnv_nl( s ):
		k = '\\n'
		while k in s:
			i = s.index( k )
			j = i + len( k )
			n = get_spc( s[ j : ] )
			s = s[ : i ] + '\n' + s[ j + n : ]
		return s

	def cnv_qt( s ):
		qts = [ "'", '"' ]
		if len( s ) >= 2 and any( map( lambda qt: s[ 0 ] == qt and s[ -1 ] == qt, qts ) ):
			s = s[ 1 : -1 ]
		return s

	def add_s( s ):
		lst = s.strip().replace( '\\\n', '' ).split( '\n' )
		for s in lst:		
			n = get_spc( s )
			s = s[ n : ]
			s = cnv_nl( s )
			s = cnv_qt( s )
			if e.ids and n <= e.ids[ -1 ]:
				e.ids = list( filter( lambda v: v < n, e.ids ) )
				e.lst.append( [] )
				e.lst[ -1 ].extend( [ '' ] * len( e.ids ) )
			e.lst[ -1 ].append( s )
			e.ids.append( n )

	return empty.add( e, locals() )
				
if __name__ == "__main__":
	f = sys.stdin
	s = f.read()
	ul = ul_new()
	ul.add_s( s )
	print( ul.lst )

# EOF