C13223313311212111133133313331333132333132322331323132313112222321   >>    C1322331331121211113313331333133313233313232233132313231311222232   <<    C13223313311212111133133313331333132333132322331323132313112222323   >>      C13223313311212111133133313331333132333132322331323132313112222322   >>