1: #include <iostream.h>
2: int main()
3: {
4: int x = 5;
5: int y = 7;
6: cout "\n";
7: cout << x + y << " " << x * y;
8: cout "\n";
9:return 0;
10: }

It should be

1: #include <iostream>
2: int main()
3: {
4: int x = 5;
5: int y = 7;
6: std::cout << "\n";
7: std::cout << x + y << " " << x * y;
8: std::cout << "\n";
9:return 0;
10: }

I have corrected line 1, 6, 7 and 8.