/in/foo.cc:3:7: error: expected initializer before 'y'
    3 | int x y;
      |       ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:5:12: error: 'x' was not declared in this scope
    5 |     cin >> x >>y;
      |            ^
/in/foo.cc:5:16: error: 'y' was not declared in this scope; did you mean 'yn'?
    5 |     cin >> x >>y;
      |                ^
      |                yn