#include<stdio.h>
main()
{
int p1[2],p2[2],a;
char *msg1="hai";
char *msg2="infosys";
char *buff[7];
a=fork();
pipe[p1];
pipe[p2];
if(a==0)
{
write(p1[1],msg1,7);
sleep(5);
read(p2[0],buff,7);
printf("%s",buff);
}
else
{
read(p1[0],buff,7);
printf("%s",buff);
write(p2[1],msg2,7);
}
}