C111123313331323113313331333133313331323132333131133132313131132111   >>    C11112331333132311331333133313331333132313233313113313231313113211   <<    C111123313331323113313331333133313331323132333131133132313131132113   >>      C111123313331323113313331333133313331323132333131133132313131132112   >>