C111123313331323113313331333133313331323133113313331333132221123232321   >>    C11112331333132311331333133313331333132313311331333133313222112323232   <<    C111123313331323113313331333133313331323133113313331333132221123232323   >>      C111123313331323113313331333133313331323133113313331333132221123232322   >>