#!/usr/bin/env python3
# %%
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
import itertools

# %%
B, C, D, N, *E = map(int, read().split())

# %%
E.sort()
B, C, D = sorted([B, C, D])

# %%
answer = 0
for i, j, k in itertools.combinations(range(N), 3):
    if E[i] >= B and E[j] >= C and E[k] >= D:
        answer += pow(2, i)

print(answer)