C313212111113331323312111133133313331333133313331333133311211111   >>    C31321211111333132331211113313331333133313331333133313331121111   <<    C313212111113331323312111133133313331333133313331333133311211113   >>      C313212111113331323312111133133313331333133313331333133311211112   >>