C11111333133313232233133313331333133313331313331333133313331333133311212221   >>    C1111133313331323223313331333133313331333131333133313331333133313331121222   <<    C11111333133313232233133313331333133313331313331333133313331333133311212223   >>      C11111333133313232233133313331333133313331313331333133313331333133311212222   >>