C313212111113331323312111133133313331333133313331333132313223121   >>    C31321211111333132331211113313331333133313331333133313231322312   <<    C313212111113331323312111133133313331333133313331333132313223123   >>      C313212111113331323312111133133313331333133313331333132313223122   >>