C111112111133131121133133313331333133313331323133313331333131211113322331312321   >>    C11111211113313112113313331333133313331333132313331333133313121111332233131232   <<    C111112111133131121133133313331333133313331323133313331333131211113322331312323   >>      C111112111133131121133133313331333133313331323133313331333131211113322331312322   >>