#include<stdio.h>
int main()
{
    float acc;; 
    int n;
    float tran;
    float each;
    scanf("%f",&acc);  
    scanf("%.2d",&n);
    scanf("%.2d",&tran);
    scanf("%.2d",&each);
    scanf("%.2f",&dep);
    float(acc+tran+each+dep);
    printf("%.2f",a)
    return 0;
}