C1111233131211111211113313331333133313331333133313331333133313223313131131231   >>    C111123313121111121111331333133313331333133313331333133313331322331313113123   <<    C1111233131211111211113313331333133313331333133313331333133313223313131131233   >>      C1111233131211111211113313331333133313331333133313331333133313223313131131232   >>