C111123313331323113313331333133313331323133113313331333133313311213111121   >>    C11112331333132311331333133313331333132313311331333133313331331121311112   <<    C111123313331323113313331333133313331323133113313331333133313311213111123   >>      C111123313331323113313331333133313331323133113313331333133313311213111122   >>