Run id: 160952

Main.cc: In function 'int main()':
Main.cc:9:9: error: redeclaration of 'std::__cxx11::string s'
  string s="";
         ^
Main.cc:4:9: note: 'std::__cxx11::string s' previously declared here
  string s,b;
         ^
Main.cc:17:11: error: 's1' was not declared in this scope
     cout<