#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,d,x,y;
	scanf("%d%d%d",&n,&d,&x);
	int ans=0;
	for(int i=0;i<n;i++){
		scanf("%d",&y);
		ans+=(d-1)/y+1;
	}
	printf("%d",ans+x);
	return 0;
}