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

#define SZBUF 256

int main(int argc, char const *argv[]){
	char buf[SZBUF];
	int fd,n,m;
	if (argc<4){
		fprintf(stderr,"Usage : %s <file_name> <32-bit int in Hex> <Offset in Hex> \r",argv[0]);
		exit (1);
	}
}