C111123313331323113313331333133313331322331313331313231121131211   >>    C11112331333132311331333133313331333132233131333131323112113121   <<    C111123313331323113313331333133313331322331313331313231121131213   >>      C111123313331323113313331333133313331322331313331313231121131212   >>