# 11:35~

t = int(input())

def solve():
    n = int(input())
    a = list(map(int, input().split()))
    if n & 1:
        return True
    a.sort()    
    for i in range(0, n, 2):
        if a[i] != a[i+1]:
            return True
    return False




for test in range(t):
    print("Alice" if solve() else "Bob")