foo.cc: In function ‘int main()’:
foo.cc:5:9: error: ‘iny’ was not declared in this scope; did you mean ‘int’?
    5 |         iny a,b;
      |         ^~~
      |         int
foo.cc:6:14: error: ‘a’ was not declared in this scope
    6 |         cin>>a>>b;
      |              ^
foo.cc:6:17: error: ‘b’ was not declared in this scope
    6 |         cin>>a>>b;
      |                 ^