#include<iostream> int main(){ double a[11]={0}; for(int i=1;i<=10;i++){ scanf("%lf",&a[i]); } a[1]*=28.9; a[2]*=32.7; a[3]*=45.6; a[4]*=78.0; a[5]*=35.0; a[6]*=86.2; a[7]*=27.8; a[8]*=43.0; a[9]*=56.0; a[10]*=65.0; double zsh=0; for(int i=1;i<=10;i++){ zsh=zsh+a[i]; } printf("%.1lf",zsh); return 0; }