C313212111133131211331333133313331333133313231333133313331333133313223331231221   >>    C31321211113313121133133313331333133313331323133313331333133313331322333123122   <<    C313212111133131211331333133313331333133313231333133313331333133313223331231223   >>      C313212111133131211331333133313331333133313231333133313331333133313223331231222   >>