C13223313311212111133133313331323133313331323113313231323112221   >>    C1322331331121211113313331333132313331333132311331323132311222   <<    C13223313311212111133133313331323133313331323113313231323112223   >>      C13223313311212111133133313331323133313331323113313231323112222   >>