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

#define rep(i,a,b) for(int i=a;i<b;i++)
#define int long long
const int inf = 100100100100100009;
const int mod = 1000000007;

signed main(){
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);

    int n; cin >> n;
    int c; cin >> c;
    int v; cin >> v;

    vector< vector<vector<int>> > edges(n);

    int data[4][v];
    rep(i,0,4){
        rep(j,0,v){
            cin >> data[i][j];
        }
    }
    

    rep(i,0,v){
        vector<int> tmp = {data[1][i]-1, data[2][i], data[3][i]};
        edges[data[0][i]-1].push_back(tmp);
    }

    int dp[c+1][n]; memset(dp,-1,sizeof(dp)); dp[0][0] = 0;
    
    rep(i,0,n){
        rep(j,0,c+1){
            if(dp[j][i] > -1){
                rep(k,0,edges[i].size()){
                    if(j + edges[i][k][1] < c+1){
                        dp[j + edges[i][k][1]][edges[i][k][0]] = dp[j][i] + edges[i][k][2];
                    }
                }
            }
        }
    }

    

    int ans = inf;
    rep(i,0,c+1){
        if(dp[i][n-1] > -1){
            ans = min(ans, dp[i][n-1]);
        }
    }

    cout << ((ans == inf) ? -1 : ans) << endl;


    
}