WAP in c to generate the following pattern

1
121
12321
1234321
12321
121
1

#include<stdio.h>
#include<stdlib.h>

main()
{
  int i,j,k;

  for(i=1;i<=7;i=i+2)
  {
  k=1;
  for(j=1;j<=i;j++)
  {
   printf("%d",k );
    if(j<=i/2)
    k++;
    else
    k--;             
  }
  printf("\n");   
  }

  for(i=5;i>=1;i=i-2)
  {
  k=1;
    for(j=1;j<=i;j++)                
        {
  printf("%d",k);
    if(j<=i/2)
    k++;
    else
    k--;
        }
  printf("\n");   
    }                                                    
system("pause");
}
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