#include <iostream>
#include <algorithm>
#include <cmath>
#define rep(i, a, n) for(int i = a;i < n;i++)
using namespace std;


int a[5];


int solve(){
	int ans = 0;
	rep(i, 0, 5){
		if(a[i] % 3 == 0 && a[i] % 5 == 0) ans += 8;
		else if(a[i] % 3 == 0 || a[i] % 5 == 0) ans += 4;
		else ans += (int)log10(a[i]) + 1;
	}
	return ans;
}


int main(){
	rep(i, 0, 5) cin >> a[i];

	cout << solve() << endl;

	return 0;
}