C1111133313331323223313331333133313113313112113121111331333131133232331   >>    C111113331333132322331333133313331311331311211312111133133313113323233   <<    C1111133313331323223313331333133313113313112113121111331333131133232333   >>      C1111133313331323223313331333133313113313112113121111331333131133232332   >>