C313212111133131211331333133313331333133322331323133313232211221123231   >>    C31321211113313121133133313331333133313332233132313331323221122112323   <<    C313212111133131211331333133313331333133322331323133313232211221123233   >>      C313212111133131211331333133313331333133322331323133313232211221123232   >>