C313212111113331323312111133133313331333133313331333133313113313331313211   >>    C31321211111333132331211113313331333133313331333133313331311331333131321   <<    C313212111113331323312111133133313331333133313331333133313113313331313213   >>      C313212111113331323312111133133313331333133313331333133313113313331313212   >>