C111123313331323113313331333133313331323133113313331333131232323213121   >>    C11112331333132311331333133313331333132313311331333133313123232321312   <<    C111123313331323113313331333133313331323133113313331333131232323213123   >>      C111123313331323113313331333133313331323133113313331333131232323213122   >>