foo.cc: In function 'int main()':
foo.cc:5:5: error: 'intx' was not declared in this scope
     intx,y,z,a;
     ^~~~
foo.cc:5:5: note: suggested alternative: 'int'
     intx,y,z,a;
     ^~~~
     int
foo.cc:5:10: error: 'y' was not declared in this scope
     intx,y,z,a;
          ^
foo.cc:5:12: error: 'z' was not declared in this scope
     intx,y,z,a;
            ^
foo.cc:5:14: error: 'a' was not declared in this scope
     intx,y,z,a;
              ^
foo.cc:7:10: error: 'X' was not declared in this scope
     cin>>X>>y>>z;
          ^
foo.cc:8:11: error: 'x' was not declared in this scope
     a=z+y+x;
           ^

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