#include <stdio.h>

int main(void)
{
	int a,b,c;
	int aa, bb, cc;
	int total;
	scanf("%d%d%d", &c, &b, &a);

	aa = a % 25;
	bb = (b + a/25) % 4;
	cc = (c + ((b + a / 25) / 4)) % 10;
	total = aa + bb + cc;
	printf("%d", total);


	return 0;
}