C1111233131211111211113313331333133313331333133313331333133313112223331323331   >>    C111123313121111121111331333133313331333133313331333133313331311222333132333   <<    C1111233131211111211113313331333133313331333133313331333133313112223331323333   >>      C1111233131211111211113313331333133313331333133313331333133313112223331323332   >>