#include<stdio.h>
#define MAX 1500
#define A 51

typedef struct{
    int exists;
    int cost;
    int time;
}cost_t;

typedef struct{
    int exists;
    cost_t costs[51];
}path_t;

int get_time(int cost_limit, int start, int via, int goal, cost_t total, path_t pathes[]){
    int i;
    int min = -1;

    if(via == goal){
        if(total.cost <= cost_limit){
            return total.time;
        }
        else{
            return -1;
        }
    }
    for(i = 0;i < A;i++){
        if(pathes[via].exists && pathes[via].costs[i].exists){
            cost_t c;
            c.cost = pathes[via].costs[i].cost + total.cost;
            c.time = pathes[via].costs[i].time + total.time;
            int tmp = get_time(cost_limit, via, i, goal, c, pathes);
            if((min == -1) || ((tmp != -1) && (tmp < min))){
                min = tmp;
            }
        }   
    }   
    return min;
}

int solve(int cost_limit, int goal, path_t pathes[]){
    int i, ans = -1; 
    cost_t c = {0};
    
    ans = get_time(cost_limit, 1, 1, goal, c, pathes);
    return ans;
}

int main(){
    int i, n, c, v;
    int tmp[4][MAX];
    path_t pathes[A];
    for(i = 0;i < A;i++){
        int j;
        pathes[i].exists = 0;
        for(j = 0;j < A;j++){
            pathes[i].costs[j].exists = 0;
            pathes[i].costs[j].cost = -1;
            pathes[i].costs[j].time = -1;
        }
    }
    scanf("%d %d %d", &n, &c, &v);
    for(i = 0;i < 4;i++){
        int j;
        for(j = 0;j < v;j++){
            scanf("%d", &tmp[i][j]);
        }
    }

    for(i = 0;i < v;i++){
        int start = tmp[0][i];
        int goal = tmp[1][i];
        int cost = tmp[2][i];
        int time = tmp[3][i];
        //printf("start=%d, goal=%d, cost=%d, time=%d\n", start, goal, cost, time);
        pathes[start].exists = 1;
        pathes[start].costs[goal].exists = 1;
        pathes[start].costs[goal].cost = cost;
        pathes[start].costs[goal].time = time;
    }
    printf("%d\n", solve(c, n, pathes));

    return 0;
}