import sys, math
input = lambda: sys.stdin.readline()[:-1]
def MI(): return map(int, input().split())
inf = 10**18
sys.setrecursionlimit(10**5)  # Codeforcesでは350000程度に

# 素因数分解√n
def prime_fac(n):
    res = []
    x = n
    y = 2
    while y*y <= x:
        ex = 0
        while x % y == 0:
            ex += 1
            x //= y
        if ex > 0: res.append((y, ex))
        y += 1
    if x > 1: res.append((x, 1))
    return res

n, = MI()
x = list(MI())

# メモ化再帰
from functools import lru_cache
@lru_cache(maxsize=None) # 再帰関数の直前に置く
def get_Grundy(i):
    res = i
    if i-1>=0 and get_Grundy(i-1)==i:
        res = i+1
    if i-2>=0 and get_Grundy(i-2)==i:
        res = i+1
    return res

ans = 0
for i in x:
    i_fac = prime_fac(i)
    for _, c in i_fac:
        ans ^= get_Grundy(c)
print("Alice" if ans!=0 else "Bob")