C313212111133131211331333133313331333133313231333133313311211113313222332321   >>    C31321211113313121133133313331333133313331323133313331331121111331322233232   <<    C313212111133131211331333133313331333133313231333133313311211113313222332323   >>      C313212111133131211331333133313331333133313231333133313311211113313222332322   >>