C11111333133313232233133313331333133112111112113313331312111113332322221   >>    C1111133313331323223313331333133313311211111211331333131211111333232222   <<    C11111333133313232233133313331333133112111112113313331312111113332322223   >>      C11111333133313232233133313331333133112111112113313331312111113332322222   >>