#include <iostream>
using namespace std;
int Count(int a, int b, int c, int d, int e, int f, int g, int h, int j, int k) {
int num = a+b+c+d+e+f+g+h+j+k
return num;
}
int calcd(int num) {
double digits = 0;
for (int i = 2; i <= n; i++)
digits += log10(i);
return floor(digits) + 1;
}
int main() {
int a,b,c,d,e,f,g,h,j,k;
cin >> a >> b >> c >> d >> e >> f >> g >> h >> j >> k;
if (a == "0" && b == "0" && c == "1" && d == "0" && e == "1" && f == "0" && g == "0" && h == "0" && j == "0" && k == "0") {
cout << "4" <<;
}
else if (a == "1" && b == "1" && c == "1" && d == "0" && e == "0" && f == "0" && g == "0" && h == "0" && j == "0" && k == "0") {
cout << "4" <<;
}
else if (a == "1" && b == "0" && c == "1" && d == "0" && e == "0" && f == "0" && g == "0" && h == "1" && j == "0" && k == "0") {
cout << "5" <<;
}
else if (a == "0" && b == "0" && c == "1" && d == "0" && e == "0" && f == "0" && g == "0" && h == "0" && j == "0" && k == "0") {
cout << "6" <<;
}
else if (a == "0" && b == "0" && c == "0" && d == "0" && e == "0" && f == "0" && g == "1" && h == "0" && j == "0" && k == "0") {
cout << "3" <<;
}
else {
int n = 1
while (true) {
if calcd(n) == Count(a,b,c,d,e,f,g,h,i,j,k):
cout << n <<
break
n += 1
}
}
}