C312312111111331312111133133313231333133313112331323223313231322121111331221   >>    C31231211111133131211113313331323133313331311233132322331323132212111133122   <<    C312312111111331312111133133313231333133313112331323223313231322121111331223   >>      C312312111111331312111133133313231333133313112331323223313231322121111331222   >>