View Compilation Error

0_0_35675074_20953.cpp: In function 'int main()':
0_0_35675074_20953.cpp:4:9: error: expected primary-expression before '%' token
   scnaf(%a%b,&a,&b);
         ^
0_0_35675074_20953.cpp:4:19: error: 'scnaf' was not declared in this scope
   scnaf(%a%b,&a,&b);
                   ^
0_0_35675074_20953.cpp:5:10: error: expected primary-expression before '%' token
   printf(%d,a+b);
          ^
0_0_35675074_20953.cpp:5:11: error: 'd' was not declared in this scope
   printf(%d,a+b);
           ^