C11111211113313112113313331333133313331333131211113313331311233132231   >>    C1111121111331311211331333133313331333133313121111331333131123313223   <<    C11111211113313112113313331333133313331333131211113313331311233132233   >>      C11111211113313112113313331333133313331333131211113313331311233132232   >>