C313212111113331323312111133133313331333133313331333133313331333131121123111   >>    C31321211111333132331211113313331333133313331333133313331333133313112112311   <<    C313212111113331323312111133133313331333133313331333133313331333131121123113   >>      C313212111113331323312111133133313331333133313331333133313331333131121123112   >>