C11111333133313232233133313331333133112111112113313331333132333131121131121   >>    C1111133313331323223313331333133313311211111211331333133313233313112113112   <<    C11111333133313232233133313331333133112111112113313331333132333131121131123   >>      C11111333133313232233133313331333133112111112113313331333132333131121131122   >>