/in/foo.cc: In function 'int main()':
/in/foo.cc:17:1: error: expected '}' at end of input
   17 | }
      | ^
/in/foo.cc:5:1: note: to match this '{'
    5 | {string str1,str2;
      | ^
/in/foo.cc:15:7: warning: ignoring return value of 'int system(const char*)', declared with attribute warn_unused_result [-Wunused-result]
   15 | system("pause");
      | ~~~~~~^~~~~~~~~