For Loop for making a following program

1 1
1 2
1 3
2 1
2 2
2 3

so what's your question? how the hell do you expect us to help you if you don't even ask a question?

Show us a program that uses a "for()" loop to count:

1
2
3

If you can't handle that, then you aren't going to be able to solve this.
If you can handle that, we will help guide you to the solution.