C312322331333132212111133133313331323133313331333133313331333131211113311312121   >>    C31232233133313221211113313331333132313331333133313331333133313121111331131212   <<    C312322331333132212111133133313331323133313331333133313331333131211113311312123   >>      C312322331333132212111133133313331323133313331333133313331333131211113311312122   >>