C11111333133313232233133313331333133112111112113313331312111113332323133312321   >>    C1111133313331323223313331333133313311211111211331333131211111333232313331232   <<    C11111333133313232233133313331333133112111112113313331312111113332323133312323   >>      C11111333133313232233133313331333133112111112113313331312111113332323133312322   >>