foo.cc:2:7: error: expected nested-name-specifier before 'spacemane'
    2 | using spacemane std;
      |       ^~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:5:5: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
    5 | if(a>b>c)
      |    ~^~
foo.cc:6:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |         cout>>a>>endl;
      |         ^~~~
      |         std::cout
In file included from stdc++.h:75:
/nix/store/np14qqgvvnyna3vv640hmhi21flymiia-gcc-12.2.0/include/c++/12.2.0/iostream:61:18: note: 'std::cout' declared here
   61 |   extern ostream cout;          /// Linked to standard output
      |                  ^~~~
foo.cc:6:18: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    6 |         cout>>a>>endl;
      |                  ^~~~
      |                  std::endl
In file included from /nix/store/np14qqgvvnyna3vv640hmhi21flymiia-gcc-12.2.0/include/c++/12.2.0/istream:39,
                 from /nix/store/np14qqgvvnyna3vv640hmhi21flymiia-gcc-12.2.0/include/c++/12.2.0/sstream:38,
                 from /nix/store/np14qqgvvnyna3vv640hmhi21flymiia-gcc-12.2.0/include/c++/12.2.0/complex:45,
                 from /nix/store/np14qqgvvnyna3vv640hmhi21flymiia-gcc-12.2.0/include/c++/12.2.0/ccomplex:39,
                 from stdc++.h:54:
/nix/store/np14qqgvvnyna3vv640hmhi21flymiia-gcc-12.2.0/include/c++/12.2.0/ostream:688:5: note: 'std::endl' declared here
  688 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
foo.cc:7:5: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
    7 | if(b>a>c)
      |    ~^~
foo.cc:8:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |         cout>>b>>endl;
      |         ^~~~
      |         std::cout
/nix/store/np14qqgvvnyna3vv640hmhi21flymiia-gcc-12.2.0/include/c++/12.2.0/iostream:61:18: note: 'std::cout' declared here
   61 |   extern ostream cout;          /// Linked to standard output
      |                  ^~~~
foo.cc:8:18: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    8 |         cout>>b>>endl;
      |                  ^~~~
      |                  std::endl
/nix/store/np14qqgvvnyna3vv640hmhi21flymiia-gcc-12.2.0/include/c++/12.2.0/ostream:688:5: note: 'std::endl' declared here
  688 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
foo.cc:9:5: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
    9 | if(c>b>a)
      |    ~^~
foo.cc:10:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |         cout>>c>>endl;
      |         ^~~~
      |         std::cout
/nix/store/np14qqgvvnyna3vv640hmhi21flymiia-gcc-12.2.0/include/c++/12.2.0/iostream:61:18: note: 'std::cout' declared here
   61 |   extern ostream cout;          /// Linked to standard output
      |                  ^~~~
foo.cc:10:18: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   10 |         cout>>c>>endl;
      |                  ^~~~
      |                  std::endl
/nix/store/np14qqgvvnyna3vv640hmhi21flymiia-gcc-12.2.0/include/c++/12.2.0/ostream:688:5: note: 'std::endl' declared here
  688 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~

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