C1111133313331323223313331333133313331323133313331311331333121111222221   >>    C111113331333132322331333133313331333132313331333131133133312111122222   <<    C1111133313331323223313331333133313331323133313331311331333121111222223   >>      C1111133313331323223313331333133313331323133313331311331333121111222222   >>