C132233133112121111331333133313231333132333131211113313223311323321   >>    C13223313311212111133133313331323133313233313121111331322331132332   <<    C132233133112121111331333133313231333132333131211113313223311323323   >>      C132233133112121111331333133313231333132333131211113313223311323322   >>