C132233133112121111331333133313331333132322331333133313223113313122221   >>    C13223313311212111133133313331333133313232233133313331322311331312222   <<    C132233133112121111331333133313331333132322331333133313223113313122223   >>      C132233133112121111331333133313331333132322331333133313223113313122222   >>