C313212111113331323312111133133313331333133313331333133313331323223331233121   >>    C31321211111333132331211113313331333133313331333133313331333132322333123312   <<    C313212111113331323312111133133313331333133313331333133313331323223331233123   >>      C313212111113331323312111133133313331333133313331333133313331323223331233122   >>