C1111121111331311211331333133313331333133313233211113313331333133313222321   >>    C111112111133131121133133313331333133313331323321111331333133313331322232   <<    C1111121111331311211331333133313331333133313233211113313331333133313222323   >>      C1111121111331311211331333133313331333133313233211113313331333133313222322   >>