C313212111113331323312111133133313331333133313331333133313132121   >>    C31321211111333132331211113313331333133313331333133313331313212   <<    C313212111113331323312111133133313331333133313331333133313132123   >>      C313212111113331323312111133133313331333133313331333133313132122   >>