C313212111133131211331333133313331323132313331333133313223313223333213221   >>    C31321211113313121133133313331333132313231333133313331322331322333321322   <<    C313212111133131211331333133313331323132313331333133313223313223333213223   >>      C313212111133131211331333133313331323132313331333133313223313223333213222   >>