C313212111113331323312111133133313331333133313331333133313331333131132121211   >>    C31321211111333132331211113313331333133313331333133313331333133313113212121   <<    C313212111113331323312111133133313331333133313331333133313331333131132121213   >>      C313212111113331323312111133133313331333133313331333133313331333131132121212   >>