/* some file I/O (Input/Output) */

#include<stdio.h>

int main()
{

	FILE	*fptr;
	float	a, b;
	int	c, d;

	/* open the input file */
	fptr = fopen("04_input_data.txt", "r");
	
	/* read the data */
	fscanf(fptr, "%f %f %d %d", &a, &b, &c, &d);

	/* print out the data */
	printf("Data read from file: a = %f  b = %f  c = %d  d = %d\n", a, b, c, d);

	/* remember to close the file */
	fclose(fptr);

}