C11111333133313232233133313331333131133131331121111331311331313112121   >>    C1111133313331323223313331333133313113313133112111133131133131311212   <<    C11111333133313232233133313331333131133131331121111331311331313112123   >>      C11111333133313232233133313331333131133131331121111331311331313112122   >>