C111123313331323113313331333133313331323133113313331333132213331323223213311231   >>    C11112331333132311331333133313331333132313311331333133313221333132322321331123   <<    C111123313331323113313331333133313331323133113313331333132213331323223213311233   >>      C111123313331323113313331333133313331323133113313331333132213331323223213311232   >>