#include <stdio.h>
FILE *fp;
char a[5760];
main(ac,av)
int ac; char *av[];
{
  if(ac<3){ printf("Usage: chead ref_fit work_fit\n"); exit(0);}
  fp=fopen(av[1],"rb");
  fread(a,2,2880,fp);
  fclose(fp);
  fp=fopen(av[2],"rb+");
  fwrite(a,2,2880,fp);
  fclose(fp);
}