import sys
input = sys.stdin.readline
N, M = map(int, input().split())
A = list(map(int, input().split()))
X = 0
for a in A:
    X ^= a
b = bin(M-1)[2:]
x = bin(X)[2:]
if len(b)>len(x):
    print("Alice")
elif len(b)==len(x):
    if int(b, 2)>=int(x, 2) and x.count("1")>0:
        print("Alice")
    else:
        print("Bob")
else:
    if int(b, 2)>=int(x[-len(b):], 2) and x[-len(b):].count("1")>0:
        print("Alice")
    else:
        print("Bob")