text: #include <stdio.h>
  #include <unistd.h>
  #include <time.h>
  #include <stdlib.h>
  
  char flag[40] ;
  
  int main(){
  	setvbuf(stdout,0,2,0);
  	char buf[100];
  	int fd ;
  	fd = open("/home/cr4ck/flag",0);
  	if(fd == -1){
  		puts("Error");
  		exit(-1);
  	}
  	read(fd,flag,32);
  	printf("What your name ? ");
  	read(0,buf,99);
  	printf("Hello ,");
  	printf(buf);
  	puts("Goodbye !");	
  }
  