#yuki_462
import sys
from math import factorial

n,k=map(int,raw_input().split())

if k<1:
 a=[]
else:
 a=map(int,raw_input().split())
 a.sort()
res=1
cnt=0
for x in a:
 if x & cnt!=cnt:
  print 0
  sys.exit()
 res*=factorial(bin(x^cnt).count('1'))
 cnt=x
res*=factorial(n-bin(cnt).count('1'))
print res%(10**9+7)