C++ :

#include<iostream>
#include<cmath>
#include<cstring>
using namespace std;
long long l1,l2,l3,c1,c2,c3,n,a,b,s[10005],f[10005];
int main(){
	cin>>l1>>l2>>l3>>c1>>c2>>c3>>n>>a>>b;
	for(int i=2;i<=n;i++){
		cin>>s[i];
	}
	memset(f,0x3f,sizeof(f));
	f[a]=0;
	for(int i=a+1;i<=b;i++){
		for(int j=i-1;j>=a;j--){
			int p=s[i]-s[j];
			if(p<=l1){
				f[i]=min(f[i],f[j]+c1);
			} 
			else if(p<=l2){
				f[i]=min(f[i],f[j]+c2);
			} 
			else if(p<=l3){
				f[i]=min(f[i],f[j]+c3);
			} 
		}
	}
	cout<<f[b];
}