#include <stdio.h>

main(){
    int i;
    double e;

    e = 1.0;        
	while(1.0+e >= 1.0){
		e=e/2.0;
		if(1.0+e == 1.0) return 0;
		printf("machine epsilon = %25.20e\n", e);
	}
	return 0;
}