C132233133112121111331333133313331333132313231332111111213232211   >>    C13223313311212111133133313331333133313231323133211111121323221   <<    C132233133112121111331333133313331333132313231332111111213232213   >>      C132233133112121111331333133313331333132313231332111111213232212   >>