#include <bits/stdc++.h>
//#include <math.h>
using namespace std;

#define INF 1.1e9
#define LINF 1.1e18
#define FOR(i,a,b) for (int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(),(v).end()
#define pb push_back
#define pf push_front
#define fi first
#define se second
#define BIT(x,n) bitset<n>(x)
#define PI 3.14159265358979323846

typedef long long ll;
typedef pair<int,int> P;
typedef pair<int,P> PP;

//-----------------------------------------------------------------------------



int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);

	int a,cnt=0;
	REP(i,5) {
		cin>>a;
		if(a%15==0) cnt+=8;
		else if(a%3==0||a%5==0) cnt+=4;
		else {
			int tmp=0;
			while(a) a/=10,tmp++;
			cnt+=tmp;
		}
	}
	cout<<cnt<<endl;

	return 0;
}