C132233133112121111331333133313331312121111133313331333132213211   >>    C13223313311212111133133313331333131212111113331333133313221321   <<    C132233133112121111331333133313331312121111133313331333132213213   >>      C132233133112121111331333133313331312121111133313331333132213212   >>