C111112111133131121133133313331333133313331323133313331333133313222123313221   >>    C11111211113313112113313331333133313331333132313331333133313331322212331322   <<    C111112111133131121133133313331333133313331323133313331333133313222123313223   >>      C111112111133131121133133313331333133313331323133313331333133313222123313222   >>