Answer Posted / vignesh1988i

#include<stdio.h>
#include<conio.h>
void main()
{
int n;
printf("enter the lines :");
scanf("%d",&n);
for(int i=0;i<n;i++)
{
printf("\n");
for(int j=i+1;j<=(2*n+1);j++)
printf("%d",j);
for(int k=2*i;k>i;k--)
printf("%d",k);
}
getch();
}

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