C11111211113313112113313331333133313331333132232111133132322231   >>    C1111121111331311211331333133313331333133313223211113313232223   <<    C11111211113313112113313331333133313331333132232111133132322233   >>      C11111211113313112113313331333133313331333132232111133132322232   >>