C11111333133313232233133313331333133112111112113313331333133321123233331   >>    C1111133313331323223313331333133313311211111211331333133313332112323333   <<    C11111333133313232233133313331333133112111112113313331333133321123233333   >>      C11111333133313232233133313331333133112111112113313331333133321123233332   >>