#include <stdio.h>
int main(void) {
	int a, b, c, d, e, f, g, h, i, j, k;
	scanf("%d", &a);
	scanf("%d", &b);
	scanf("%d", &c);
	scanf("%d", &d);
	scanf("%d", &e);
	scanf("%d", &f);
	scanf("%d", &g);
	scanf("%d", &h);
	scanf("%d", &i);
	j = a + b + c + d + e + f + g + h + i - 55;
	k = j * -1;
	printf("%d", k);

	return 0;
}