#checker

T=int(input())
assert 1<=T<=300

for _ in range(T):
    K,X,Y=map(int,input().split())
    A=list(map(int,input().split()))
    P=list(map(int,input().split()))

    assert 1<=K<=10**3
    assert 0<=X<=10**18
    assert 0<=Y<=10**18
    assert len(A)==K
    assert len(P)==K

    for i in range(K):
        assert 1<=A[i]<=10**18
        assert 1<=P[i]<=10**18

print("OK")