C313212111133131211331333133313331333133322331323133313221223121   >>    C31321211113313121133133313331333133313332233132313331322122312   <<    C313212111133131211331333133313331333133322331323133313221223123   >>      C313212111133131211331333133313331333133322331323133313221223122   >>