C312322331333132212111133133313331333133112112312111133131131211231   >>    C31232233133313221211113313331333133313311211231211113313113121123   <<    C312322331333132212111133133313331333133112112312111133131131211233   >>      C312322331333132212111133133313331333133112112312111133131131211232   >>