#include
#include

main()
 {
   char a[30],fs[50]="",t[3],sd,ed,x[3],s[3],d[3],y[3];
   int i,j,p=0,q=0;
   clrscr();
   printf("Enter characters to be stuffed : ");
   scanf("%s",a);
   printf("\nEnter a character that represents starting delimiter : ");
   scanf(" %c",&sd);
   printf("\nEnter a character that represents ending delimiter   : ");
   scanf(" %c",&ed);
   x[0]=s[0]=s[1]=sd;
   x[1]=s[2]='\0';
   y[0]=d[0]=d[1]=ed;
   d[2]=y[1]='\0';
   strcat(fs,x);

   for(i=0;i     {
       t[0]=a[i];
       t[1]='\0';
       if(t[0]==sd)
	   strcat(fs,s);
       else
	 if(t[0]==ed)
	    strcat(fs,d);
      else
	strcat(fs,t);
    }
   strcat(fs,y);
   printf("\nAfter stuffing : %s",fs);

   getch();
  }