C132233133112121111331333133313231333133313231133132333131211211   >>    C13223313311212111133133313331323133313331323113313233313121121   <<    C132233133112121111331333133313231333133313231133132333131211213   >>      C132233133112121111331333133313231333133313231133132333131211212   >>