C111123313331323113313331333133313331323132333131133131121131211   >>    C11112331333132311331333133313331333132313233313113313112113121   <<    C111123313331323113313331333133313331323132333131133131121131213   >>      C111123313331323113313331333133313331323132333131133131121131212   >>