C111123313331323113313331333133313331322331313331313231323113121   >>    C11112331333132311331333133313331333132233131333131323132311312   <<    C111123313331323113313331333133313331322331313331313231323113123   >>      C111123313331323113313331333133313331322331313331313231323113122   >>