C313212111133131211331333133313331333131121133133313223313231122112322321   >>    C31321211113313121133133313331333133313112113313331322331323112211232232   <<    C313212111133131211331333133313331333131121133133313223313231122112322323   >>      C313212111133131211331333133313331333131121133133313223313231122112322322   >>