#coding: utf-8
#yuki_412

b,c,d=sorted(map(int,raw_input().split()))
n=int(raw_input())
a=map(int,raw_input().split())
a.sort()
pw=[0 for _ in xrange(31)]
pw[0]=1
for i in xrange(1,31):
 pw[i]=pw[i-1]*2
res=0
for i in xrange(n):
 for j in xrange(i):
  for k in xrange(j):
   if b<=a[k] and c<=a[j] and d<=a[i]:
    res+=pw[k]
    
print res