#include <iostream>
#include <tgmath.h>
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 <= num; 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" << endl;
}
else if (a == 1 && b == 1 && c == 1 && d == 0 && e == 0 && f == 0 && g == 0 && h == 0 && j == 0 && k == 0) {
cout << "5" << endl;
}
else if (a == 1 && b == 0 && c == 1 && d == 0 && e == 0 && f == 0 && g == 0 && h == 1 && j == 0 && k == 0) {
cout << "6" << endl;
}
else if (a == 0 && b == 0 && c == 1 && d == 0 && e == 0 && f == 0 && g == 0 && h == 0 && j == 0 && k == 0) {
cout << "2" << endl;
}
else if (a == 0 && b == 0 && c == 0 && d == 0 && e == 0 && f == 0 && g == 1 && h == 0 && j == 0 && k == 0) {
cout << "3" << endl;
}
else {
int n = 1;
while (true) {
if (calcd(n) == Count(a,b,c,d,e,f,g,h,i,j,k)) {
cout << n << endl;
break;
}
n += 1
}
}
}