### numTeams 
from typing import *
def f_gold(rating: List[int]) -> int:
    n, ans = len(rating), 0
    for j in range(1, n - 1):
        ia = ib = ka = kb = 0
        for i in range(j):
            if rating[i] < rating[j]:
                ia += 1
            elif rating[i] > rating[j]:
                ib += 1
        for k in range(j + 1, n):
            if rating[j] < rating[k]:
                ka += 1
            elif rating[j] > rating[k]:
                kb += 1
        ans += ia * ka + ib * kb
    return ans