from collections import Counter

def factorize(n):
    if n == 1: return []
    res = []
    x, y = n, 2
    while y * y <= x:
        while x % y == 0:
            res.append(y)
            x //= y
        y += 1
    if x > 1:
        res.append(x)
    return res

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

g = 0

for m in M:
    c = Counter(factorize(m))
    for v in c.values():
        g ^= v % 2
        
print('Alice' if g != 0 else 'Bob')