How to trace output?

[AkiraC]

How to trace output of this program?
I don't understand how to trace the output
It shows
1
0
0
0
0
2
0
0
0
0
3
0
0
0
0
4

#include<stdio.h>
#include<stdlib.h>
#pragma warning (disable:4996)

main(void) {

	int i = 1, j;
	while (i <= 4) {
		j = 1;
		while (j <= 4) {
			if (i == j)
				printf("%d\n", j);
			else
				printf("0\n");
			j = j + 1;
		}
		i = i + 1;
	}


	system("pause");
}

[Shishykish]

Write a numbered list of all the steps the code is making or make a flow chart, that helps me. e.g.

int i = 1, j;

I would write "1. The computer makes an int called i equal to 1 and an int called j

[AkiraC]

Thanks :)

[seeplus]

Use the debugger for your compiler. MS VS has an in-built one within its IDE.