C111123313331323113313331333133313331323132333133313331311122221   >>    C11112331333132311331333133313331333132313233313331333131112222   <<    C111123313331323113313331333133313331323132333133313331311122223   >>      C111123313331323113313331333133313331323132333133313331311122222   >>