#include<stdio.h>
int main()
{
    double a;
    int b;
    double c;
    double d;
    double e;
    
    scanf("%lf",&a);
    scanf("%d",&b);
    scanf("%lf",&c);
    scanf("%lf",&d);
    scanf("%lf",&e);
    
    f=(a+c+d);
    printf("%lf",f);
}