C111123313331323113313331333133313331323133113313331333131312131   >>    C11112331333132311331333133313331333132313311331333133313131213   <<    C111123313331323113313331333133313331323133113313331333131312133   >>      C111123313331323113313331333133313331323133113313331333131312132   >>