> #include <stdio.h>
> double MAX(double a, double b);
> double MIN(double a, double b);
> int main(void)
> {
> 	double a, b, c, d, m, n;
> 
> 	while (1) {
> 		scanf("%lf%lf%lf%lf", &a, &b, &c, &d);
> 		if (a == 0.0 || b == 0.0 || c == 0.0 || d == 0.0)
> 			break;
> 		if (MIN(a, b) <= MIN(c, d) &&
> 				MAX(a, b) <= MAX(c, d)) {
> 			printf("100%\n");                        -->printf("100%%\n");
> 		}
> 		else {
> 			m = MIN(c, d)/MIN(a, b);
> 			n = MAX(c, d)/MAX(a, b);
> 			if ((m - n) < 0.0)
> 				printf("%d%c\n", (int)(m*100), '%');
> 			else
> 				printf("%d%c\n", (int)(n*100), '%');
> 		}
> 
> 	}
> 	return 0;
> }
> double MIN(double a, double b)
> {
> 	return (a < b) ? a : b;
> }
> double MAX(double a, double b)
> {
> 	return (a > b) ? a : b;
> }