Number Pattern : 21

Program:

 #include<stdio.h>
int main()
{
int i,j,n;
printf("How many lines: ");
scanf("%d",&n);
for(i=n;i>=1;i--)
{
for(j=i;j<=n;j++)
{
printf("%d",i);
}
printf("\n");
  }
return 0;
}

Output:

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