/* book example "Building a Data File" */

#include<stdio.h>
int main()
{
	float x, y;
	int i = 0;
	FILE *graphptr;

	graphptr = fopen("graph.dat", "w");

	if (graphptr)
	{
		while(i < 3)
		{
			scanf("%f %f", &x, &y);
			fprintf(graphptr, "%f %f ", x, y);
			i++;
		}
		fclose (graphptr);
	}
	else
		printf("File <graph.dat> is not available\n");
	
	return 0;
}