#include <iostream>
#include<vector>
using namespace std;

int main() {
int a, b, c, d, e;
while (cin >> a >> b >> c >> d >> e) { // 注意 while 处理多个 case
// 64 位输出请用 printf("%lld")

if(a==0 || b==0 || d == 0 || e == 0){
cout << 0 << endl;
return 0;
}
if(d <= 100){
cout << 9 << endl;
return 0;
}
vector<vector<int>> num;
int count = 0;
while(c){
if(c % 10) count++;
c = c / 10;
}

if(count > 2){
cout << 8 << endl;
return 0;
}else{

cout << 0 << endl;
return 0;

}

}