C132233133112121111331333133313331323132313231333133313233222121   >>    C13223313311212111133133313331333132313231323133313331323322212   <<    C132233133112121111331333133313331323132313231333133313233222123   >>      C132233133112121111331333133313331323132313231333133313233222122   >>