#include <stdio.h>

int main(void){
	int l, m, n;
	int sum = 0;

	scanf("%d", &l);
	scanf("%d", &m);
	scanf("%d", &n);

	sum = l * 100 + m * 25 + n;
	sum %= 1000;
	l = sum / 100;
	sum = sum % 100;
	m = sum / 25;
	printf("%d\n", sum + l + m);

	return 0;
}