foo.cc: In function 'int main()':
foo.cc:5:27: error: expected primary-expression before '<<' token
    5 |  cout<<"0   25  75"<<endl;<<
      |                           ^~
foo.cc:6:24: error: expected primary-expression before '<<' token
    6 |     "4   18  78"<<endl;<<
      |                        ^~
foo.cc:7:24: error: expected primary-expression before '<<' token
    7 |     "8   11  81"<<endl;<<
      |                        ^~

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