#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);
}