C132233133112121111331333133313331312121111133313331333112133313331333132322131   >>    C13223313311212111133133313331333131212111113331333133311213331333133313232213   <<    C132233133112121111331333133313331312121111133313331333112133313331333132322133   >>      C132233133112121111331333133313331312121111133313331333112133313331333132322132   >>