C11112331312111112111133133313331333132212111133133313331333132322331313312321   >>    C1111233131211111211113313331333133313221211113313331333133313232233131331232   <<    C11112331312111112111133133313331333132212111133133313331333132322331313312323   >>      C11112331312111112111133133313331333132212111133133313331333132322331313312322   >>