Write a program to generate all combinations of 1, 2 and 3 using for loop.

#include<stdio.h>
#include<conio.h>
int main()
{
	int i,j,k;
	for(i=1;i<=3;i++)
	{
		for(j=1;j<=3;j++)
		{
			for(k=1;k<=3;k++)
			{
				if(i==j || i==k || j==k)
					continue;
				printf("%d, ", i*100+j*10+k);
			}
		}
	}
	printf("are the all possible combinations of 1,2 and 3.");
	getch();
	return 0;
}