#include<bits/stdc++.h>
using namespace std;
// #define int long long int
void h(){
double m1,m2,m3,m4,m5;cin>>m1>>m2>>m3>>m4>>m5;
double w1,w2,w3,w4,w5;cin>>w1>>w2>>w3>>w4>>w5;
double hs,hu;cin>>hs>>hu;
double ans=max(150.0,(1-m1/250)*500-50*w1)+max(300.0,(1-m2/250)*1000-50*w2)+max(450.0,(1-m3/250)*1500-50*w3)+max(600.0,(1-m4/250)*2000-50*w4)+max(750.0,(1-m5/250)*2500-50*w5);
cout<<ans+hs*100.0-hu*50.0<<endl;
}
int main(){
// int t;cin>>t;
// while(t--){
h();
// }
}
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