C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){
	long double x,y,z,sb;
	cin>>x>>y>>z>>sb;
	cout<<round(11*(x*y+2*x*z+2*y*z-sb));
	return 0;
}

Python :

# coding=utf-8
a=float(input())
b=float(input())
c=float(input())
k=float(input())
cost=(a*b+a*c*2+b*c*2-k)*11;
print(format(cost,'.2f'))