C313212111133131211331333133313331333133313331322133313232332321   >>    C31321211113313121133133313331333133313331333132213331323233232   <<    C313212111133131211331333133313331333133313331322133313232332323   >>      C313212111133131211331333133313331333133313331322133313232332322   >>