#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ double a[10],sum=0; for(int i=0;i<10;i++){ cin>>a[i]; } sum+=a[0]*28.9; sum+=a[1]*32.7; sum+=a[2]*45.6; sum+=a[3]*78; sum+=a[4]*35; sum+=a[5]*86.2; sum+=a[6]*27.8; sum+=a[7]*43; sum+=a[8]*56; sum+=a[9]*65; cout<<sum; return 0; }