C11111333133313232233133313331333133112111112113313331311331322133311211331   >>    C1111133313331323223313331333133313311211111211331333131133132213331121133   <<    C11111333133313232233133313331333133112111112113313331311331322133311211333   >>      C11111333133313232233133313331333133112111112113313331311331322133311211332   >>