C111123313331323113313331333133313331323112133313331333121121132321   >>    C11112331333132311331333133313331333132311213331333133312112113232   <<    C111123313331323113313331333133313331323112133313331333121121132323   >>      C111123313331323113313331333133313331323112133313331333121121132322   >>