C312322331333132212111133133313331333133112112312111133133311211331322221   >>    C31232233133313221211113313331333133313311211231211113313331121133132222   <<    C312322331333132212111133133313331333133112112312111133133311211331322223   >>      C312322331333132212111133133313331333133112112312111133133311211331322222   >>