#include<iostream> #include<cstdio> #include<cstring> #include<cmath> #include<iomanip> # include<stdio.h> using namespace std; int main() { int a[1001]={0}; for(int i=1;i<=7;i++){ cin>>a[i]; } int mxx=0,gbb = 0; for(int i=1;i<=7;i++){ if(a[i]>0){ gbb = i; } } int sum=0; sum = a[1]*(1+gbb); for(int i=2;i<=7;i++){ sum += a[i]*i; } cout<<sum; }