C312322331333132212111133133313331333133323213331322331313233231   >>    C31232233133313221211113313331333133313332321333132233131323323   <<    C312322331333132212111133133313331333133323213331322331313233233   >>      C312322331333132212111133133313331333133323213331322331313233232   >>