C312322331333132212111133133313331322331311331311331323133313231333133313231221   >>    C31232233133313221211113313331333132233131133131133132313331323133313331323122   <<    C312322331333132212111133133313331322331311331311331323133313231333133313231223   >>      C312322331333132212111133133313331322331311331311331323133313231333133313231222   >>