A + B problem explanations

When it comes to write the solution to a problem, then I really come to write a. (A + B the water)

1 #include<bits/stdc++.h>
2 using namespace std;
3 int main()
4 {
5     int a,b;
6     cin>>a>>b;
7     cout<<a+b<<endl;
8     return 0;
9 }

Nothing to say.