C313212111113331323312111133133313331333133313331333133313331333131122231211   >>    C31321211111333132331211113313331333133313331333133313331333133313112223121   <<    C313212111113331323312111133133313331333133313331333133313331333131122231213   >>      C313212111113331323312111133133313331333133313331333133313331333131122231212   >>