#include<bits/stdc++.h>

using namespace std;
using ll=long long;
#define rep2(i, a, n) for(int i = (a); i < (n); i++)
#define rep(i, n) rep2(i,0,n)

int main(){
  cin.tie(nullptr);ios_base::sync_with_stdio(false);
  int a,cnt=0;
  rep(i,5){
    cin>>a;
    if(a%5==0&&a%3==0){
      cnt+=8;
    }else if(a%5==0||a%3==0){
      cnt+=4;
    }else{
      int hoge=0,shake=a;
      while(shake>0){
        shake/=10;
        hoge++;
      }
      cnt+=hoge;
    }
  }
  cout<<cnt<<endl;
}