5楼是
                     /^\/^\
                   _|__|   O|
          \/      /~      \_/ \
           \____|__________/   \
                  \_______       \
                          `\      \                  \
                            |      |                   \
                           /       /                     \
                          /      /                        \\
                        /       /                          \ \
                       /      /                             \   \
                     /      /              _----_             \    \
                    /      /            _-~       ~-_          |    |
                   (       (         _-~     _--_     ~-_      _/    |
                    \       ~-____-~     _-~     ~-_     ~-_-~     /
                      ~-_            _-~           ~-_        _-~   
                         ~--______-~                 ~-___-~吃牛