#include<bits/stdc++.h>
using namespace std;
float js=28.9,sj=32.7,sz=45.6,c=78,r=35,jg=86.2,by=27.8,cz=43,wl=56,ja=65;
int main(){
	int a,b,c2,d,e,f,z,r,t,q;
	cin>>a>>b>>c2>>d>>e>>f>>z>>r>>t>>q;
	float a1=a*js,b1=b*sj,c1=sz*c2,d1=c*d,e1=r*e,f1=jg*f,z1=by*z,r1=cz*r,t1=wl*t,q1=ja*q;
	float x1=a1+b1+c1+d1+e1+f1+z1+r1+t1+q1;
	cout<<fixed<<setprecision(1)<<x1;
	return 0;
}