C111123313331323113313331323133313331311331311331333133112331333122311   >>    C11112331333132311331333132313331333131133131133133313311233133312231   <<    C111123313331323113313331323133313331311331311331333133112331333122313   >>      C111123313331323113313331323133313331311331311331333133112331333122312   >>