View Compilation Error

0_0_32176468_26124.cpp: In function 'int main()':
0_0_32176468_26124.cpp:37:8: error: 'x' was not declared in this scope
   cin>>x>>y,ad(a,b);
        ^
0_0_32176468_26124.cpp:37:11: error: 'y' was not declared in this scope
   cin>>x>>y,ad(a,b);
           ^