int main()
{
int i = 1,j = 1;
for(i;i<10;i++)
{
for(j;j<i+1;j++)
{
printf("%d",i);
printf("X");
printf("%d",j);
if(i != j)
printf(",");
}
printf("\n");
j = 2;
}
return 0;
}
#include<stdio.h>
int main()
{
int i = 1;
int j = 1;
do
{
do
{
printf("%d",i);
printf("X");
printf("%d",j);
if(i != j)
printf(",");
i++;
}while(i<j+1);
i = 1;
j++;
printf("\n");
}while(j<10);
return 0;
}