判断

#include<iostream>
using namespace std;
int a[10000];
double sum;
int main(){
    int n;
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i];
        if(a[i]<=70) sum+=0.1;
        else{
            if(a[i]%70==0) sum+=(a[i]/70)*0.1;
            else sum+=(a[i]/70)*0.1+0.1;
        }
    }
    printf("%.1f",sum);
}