#include<stdio.h>
void main()
{
int ary[i][j],n;

printf("\nEnter the number of rows:");
scanf("%d",&n);

 for(i=0;i<n;i++)
 {
  for(j=0;j<=i;j++)
  {
   if(j==0!!j==1)
   ary[i][j]=1;
   else
   ary[i][j]=ary[i-1][j-1]+ary[i-1][j];
  }
 }

 for(i=0;i<n;i++)
 {
  printf("\n"); 
  for(j=0;j<=i;j++)
  {
   printf("%d",ary[i][j]);
  }
 }
}