#include<bits/stdc++.h>
using namespace std;

int main()
{
    int n,d,x,total,i,j;
    scanf("%d %d %d",&n,&d,&x);
    total=x;
    for(i=1;i<=n;i++)
    {
        scanf("%d",&j);
        total+=(d-1)/j + 1;
    }
    printf("%d\n",total);
}
