C111123313331323113313331333133313331323112133313331333132313213321   >>    C11112331333132311331333133313331333132311213331333133313231321332   <<    C111123313331323113313331333133313331323112133313331333132313213323   >>      C111123313331323113313331333133313331323112133313331333132313213322   >>