C111123313331323113313331333133313331323112133313331313331323133313112113122321   >>    C11112331333132311331333133313331333132311213331333131333132313331311211312232   <<    C111123313331323113313331333133313331323112133313331313331323133313112113122323   >>      C111123313331323113313331333133313331323112133313331313331323133313112113122322   >>