Run id: 133026

Main.cc: In function 'int main()':
Main.cc:4:5: error: 'chra' was not declared in this scope
     chra a;
     ^
Main.cc:5:10: error: 'a' was not declared in this scope
     cin>>a=b;
          ^
Main.cc:5:12: error: 'b' was not declared in this scope
     cin>>a=b;
            ^