int pipe1[2], pipe2[2];

        pipe(pipe1);//create first pipe
		pid_t PID=fork();
        if(PID==0){
                close(1);
                dup(pipe1[1]);
                close(pipe1[0]);
                close(pipe1[1]);
               	execvp(*argv,argv);
                printf("operation failed");

        } else {
                
                pipe(pipe2);
				pid_t PID2=fork();
                if (PID2==0) {
                        close(0);
                        dup(pipe1[0]);
                        close(1);
                        dup(pipe2[1]);
                        close(pipe1[0]);
                        close(pipe1[1]);
                        close(pipe2[0]);
                        close(pipe2[1]);
                        execvp(*argv2, argv2);
                } else {
                		pid_t PID3=fork();
   				waitpid(PID3,&status,0);<-----Not sure about this
                		if(PID3==0){
                        close(0);
                        dup(pipe2[0]);
                        close(pipe1[0]);
                        close(pipe1[1]);
                        close(pipe2[0]);
                        close(pipe2[1]);
                        execvp(*argv3, argv3);
                		}
                		
                	}
      	  }