C1111133313331323223313331333133313113313121111331322121133131123332331   >>    C111113331333132322331333133313331311331312111133132212113313112333233   <<    C1111133313331323223313331333133313113313121111331322121133131123332333   >>      C1111133313331323223313331333133313113313121111331322121133131123332332   >>