#define _USE_MATH_DEFINES
#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <queue>
#include <math.h>
#include <cmath>
#include <stack>
#include <map>
#include <set>
#include <numeric>
#include <iomanip>
#include <climits>
#include <functional>
#include <cassert>
#include <tuple>
using namespace std;
using ll = long long;

int N, M;
ll A[200009], B[200009];
ll C[200009];

int main() {
    
    cin >> N >> M;
    ll sum = 0;
    for(int i = 0; i < N; ++i) cin >> A[i];
    for(int i = 0; i < M; ++i) cin >> B[i];
    for(int i = 0; i < N; ++i) {
        cin >> C[i];
        sum += C[i];
    }

    vector<ll> add(N,0);
    for(int i = 1; i < N; ++i) add[i] = add[i-1]+B[(i-1)%M];
    // for(int i = 0; i < N; ++i) cout << add[i] << endl;

    map<ll, ll> mp;
    for(int i = 0; i < N; ++i) mp[A[i]-add[i]] += C[i];

    ll ans = 1e18;
    for(auto [k, v] : mp) ans = min(ans, sum-v);

    cout << ans << endl;

}