C111112111133131121133133313331333132313113313331333113313221121221   >>    C11111211113313112113313331333133313231311331333133311331322112122   <<    C111112111133131121133133313331333132313113313331333113313221121223   >>      C111112111133131121133133313331333132313113313331333113313221121222   >>