#include <bits/stdc++.h>
#define rep(i, a, n) for(int i = a; i < n; i++)
#define REP(i, n) rep(i, 0, n)
#define repb(i, a, b) for(int i = a; i >= b; i--)
#define all(a) a.begin(), a.end()
#define int long long
#define chmax(x, y) x = max(x, y)
#define chmin(x, y) x = min(x, y)
using namespace std;
typedef pair<int, int> P;
const int mod = 1000000007;
const int INF = 1e12;

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int ans = 0;
    int a[5];
    rep(i, 0, 5) cin >> a[i];
    rep(i, 0, 5){
        int tmp = 0;
        if(a[i] % 3 == 0) tmp += 4;
        if(a[i] % 5 == 0) tmp += 4;
        ans += max((int)(to_string(a[i]).size()), tmp);
    }
    cout << ans << endl;
}