import sys
stdin=sys.stdin

ip=lambda: int(sp())
fp=lambda: float(sp())
lp=lambda:list(map(int,stdin.readline().split()))
tp=lambda:tuple(map(int,stdin.readline().split()))
sp=lambda:stdin.readline().rstrip()
yp=lambda:print('Yes')
np=lambda:print('No')

n=ip()
a=lp()
dp=[[-1 for _ in range(2**14+1)]for _ in range(n+1)]

dp[0][0]=0
for i in range(n):
    for j in range(2**14+1):
        if dp[i][j]!=-1:
            dp[i+1][j]=1
            dp[i+1][j^a[i]]=1

ans=0
for u in range(2**14+1):
    if dp[-1][u]!=-1:
        ans+=1

print(ans)