C313212111133131211331333133313331333132333133313331311331333133322121   >>    C31321211113313121133133313331333133313233313331333131133133313332212   <<    C313212111133131211331333133313331333132333133313331311331333133322123   >>      C313212111133131211331333133313331333132333133313331311331333133322122   >>