C132233133112121111331333133313231333132333131211113313331313221211   >>    C13223313311212111133133313331323133313233313121111331333131322121   <<    C132233133112121111331333133313231333132333131211113313331313221213   >>      C132233133112121111331333133313231333132333131211113313331313221212   >>