#include<bits/stdc++.h> using namespace std; int main() { int n; double sum=0; cin>>n; int a[n]; for(int i=1; i<=n; i++) { cin>>a[i]; if(a[n]%70==0) { sum=sum+a[i]/70; } else { sum=sum+a[i]/70+1; } } cout<<sum; }