int main(void) {
	int L,M,N;

	scanf("%d", &L);
	scanf("%d", &M);
	scanf("%d", &N);

	M = M + (N/25);
	N %= 25;

	L = L + (M/4);
	M %= 4;

	L %= 10;

	int total;
	total = L + M + N;

	printf("%d\n", total);

	return 0;
}