#include<iostream> using namespace std; int main(){ int a[1001] = {0}; for(int i=1;i<=7;i++){ cin>>a[i]; } int mxx = 0,gdd = 0; for(int i=1;i<=7;i++){ if(a[i] > 0){ gdd = i; } } int sum = 0; sum = a[1] *(1+gdd); for(int i=2;i<=7;i++){ sum += a[i] * i; } cout<<sum; }