import sys
import pypyjit
import itertools
import heapq
import math
from collections import deque, defaultdict
import bisect

input = sys.stdin.readline
sys.setrecursionlimit(10 ** 6)
pypyjit.set_param('max_unroll_recursion=-1')


N = int(input())
C = int(input())
V = int(input())
S = list(map(int, input().split()))
T = list(map(int, input().split()))
Y = list(map(int, input().split()))
M = list(map(int, input().split()))

INF = 1 << 30
E = [[] for _ in range(N + 1)]
for s, t, y, m in zip(S, T, Y, M):
    E[s].append((t, y, m))

# dp[i][j] := 町iに総コストjかけて辿り着ける最小の時間
dp = [[INF for _ in range(C + 1)] for _ in range(N + 1)]
dp[1][0] = 0
h = [(0, 1, 0)]

while len(h) > 0:
    _, v, c = heapq.heappop(h)

    for d, y, m in E[v]:
        if c + y > C:
            continue
        if dp[d][c + y] > dp[v][c] + m:
            dp[d][c + y] = dp[v][c] + m
            heapq.heappush(h, (dp[d][c + y], d, c + y))

ans = min(dp[N])
print(ans if ans < INF else -1)