"""Validator"""

N,M=map(int,input().split())
A=list(map(int,input().split()))
B=list(map(int,input().split()))

assert len(A)==N, "Aの長さが制約違反 (|A|={}, N={})".format(len(A),N)
assert len(B)==M, "Bの長さが制約違反 (|B|={}, M={})".format(len(B),M)

for i,a in enumerate(A,1):
    assert 1<=a<=10**4, "A_{} が制約違反 (A_{}={})".format(i,i,a)

for j,b in enumerate(B,1):
    assert 1<=b<=10**4, "B_{} が制約違反 (B_{}={})".format(j,j,b)