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()))
z=zip(S,T,Y,M)
d=[[None]*(c+1) for i in range(n)]
d[0][0] = 0
for s,t,y,m in sorted(z,key=lambda x:(x[0],x[1])):
    for j in range(c+1):
        a=d[s-1][j]
        if a is not None:
            q=y+j
            if c<q:
                break
            p=t-1
            x=a+m
            if d[p][q] is None or x<d[p][q]:
                d[p][q]=x
o=None
for x in d[n-1]:
    if x is not None:
        if o is None or x<o:
            o=x
print(-1 if o is None else o)