Run id: 99635

Main.cc: In function 'int main()':
Main.cc:4:29: error: 'scanf' was not declared in this scope
  while(scanf("%d %d", &a, &b) != EOF)
                             ^
Main.cc:4:34: error: 'EOF' was not declared in this scope
  while(scanf("%d %d", &a, &b) != EOF)
                                  ^
Main.cc:5:23: error: 'printf' was not declared in this scope
   printf("%d\n", a + b);
                       ^