C132233133112121111331333133313331312121111133313331333132233233313231221   >>    C13223313311212111133133313331333131212111113331333133313223323331323122   <<    C132233133112121111331333133313331312121111133313331333132233233313231223   >>      C132233133112121111331333133313331312121111133313331333132233233313231222   >>