C132233133112121111331333133313231333132333131211113313211232211   >>    C13223313311212111133133313331323133313233313121111331321123221   <<    C132233133112121111331333133313231333132333131211113313211232213   >>      C132233133112121111331333133313231333132333131211113313211232212   >>