C11111211113313112113313331333133313233313113121111331322333121211   >>    C1111121111331311211331333133313331323331311312111133132233312121   <<    C11111211113313112113313331333133313233313113121111331322333121213   >>      C11111211113313112113313331333133313233313113121111331322333121212   >>