C111123313331323113313331333133313331323132333133313331323133313113313133111   >>    C11112331333132311331333133313331333132313233313331333132313331311331313311   <<    C111123313331323113313331333133313331323132333133313331323133313113313133113   >>      C111123313331323113313331333133313331323132333133313331323133313113313133112   >>