#include <cstdio>

#define FOR(i, l, r) for(int i = (l)    ; i <  (r); i++)
#define REV(i, l, r) for(int i = (r) - 1; i >= (l); i--)
#define INC0(i, n) FOR(i, 0, n)
#define INC1(i, n) FOR(i, 1, (n) + 1)
#define DEC0(i, n) REV(i, 0, n)
#define DEC1(i, n) REV(i, 1, (n) + 1)

typedef long long   signed int LL;
typedef long long unsigned int LU;


int l, m, n;

int main() {
	scanf("%d%d%d", &l, &m, &n);
	
	int p = l * 100 + m * 25 + n;
	int ans = 0;
	
	p %= 1000;
	
	ans += p / 100;
	p %= 100;
	
	ans += p / 25;
	p %= 25;
	
	ans += p;
	
	printf("%d\n", ans);
	
	return 0;
}