#include <stdio.h>

#define RECSIZE 14

int main()
{
	FILE *f;
	char newfroot[RECSIZE] = "Snozberry";
	int record,offset;

	if(!(f = fopen("froot.txt","r+")))
	{
		puts("Error opening file");
		return(1);
	}

/* Replace record 12, record size = RECSIZE */
	record = 12;
	offset = record * RECSIZE;
	fseek(f,offset,SEEK_SET); 
	fwrite(newfroot,RECSIZE,1,f);
	fclose(f);
	return(0);
}