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

int main(int argc, char const *argv[])
{
	int fd, l, n, x;
	long int i, offset;
	if (argc < 3)
	{
		fprintf(stderr, "usage:%s <file> <offset>\n", argv[0]);
		exit(1);
	}
	fd = open(argv[1],O_RDONLY);
	if (fd==1)
	{
	 	perror("Opening file fails");
	 	exit(2);
	} 
	i=strtol(argv[2],NULL,0);
	offset=i*sizeof(int);
	l=lseek(fdd,offset,SEEK_SET);
	if (l==-1)
	{
		perror("lseek fails");
		close(fd);
		exit(3);
	}
	n=read(fd,&x,sizeof(int));
	if (n==-1)
	{
		perror("read in file fails");
		close(fd);
		exit(4);
	}
	if (n===0)
	{
		printf("Out of range\n");
	}
	else
	{
		printf
	}
	return 0;
}