#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;

int main(){
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	ll h,w; cin >> h >> w;
	vector<ll> a(h-1),b(w),c(h),d(w-1);
	ll res=0;
	for(int i=0;i<h-1;i++){
		cin >> a[i];
		res+=a[i];
	}
	for(int i=0;i<w;i++){
		cin >> b[i];
	}
	res+=(h-1)*b[0];
	for(int i=0;i<h;i++){
		cin >> c[i];
	}
	for(int i=0;i<w-1;i++){
		cin >> d[i];
		res+=c[0]+d[i];
	}
	vector<ll> v;
	for(int i=0;i<w-1;i++){
		v.push_back(b[i+1]-d[i]);
	}
	sort(v.begin(), v.end());
	for(int i=0;i<h-1;i++){
		ll aa=a[i],cc=c[i+1];
		ll p=lower_bound(v.begin(), v.end(),cc-aa)-v.begin();
		res+=p*aa;
		res+=(w-1-p)*cc;
	}
	v.clear();
	for(int i=0;i<h-1;i++){
		v.push_back(a[i]-c[i+1]);
	}
	sort(v.begin(), v.end());
	for(int i=0;i<w-1;i++){
		ll bb=b[i+1],dd=d[i];
		ll p=lower_bound(v.begin(), v.end(),dd-bb)-v.begin();
		res+=p*bb;
		res+=(h-1-p)*dd;
	}
	cout << res << endl;
}