N,M = map(int,input().split())
assert(1<=N<=2*10**5)
assert(1<=M<=2*10**5)
b = list(map(int,input().split()))
c = list(map(int,input().split()))
assert(all(1<=b[i]<=M for i in range(N)))
assert(all(1<=c[i]<=N for i in range(N)))