from collections import defaultdict

freq = defaultdict(int)
pair = defaultdict(int)

def countTriplets(arr, r):
    count = 0
    
    for val in arr:
        if val % (r*r) == 0:
            count += pair[val // r]
        if val % r == 0:
            pair[val] += freq[val // r] 
        freq[val] += 1
            
    return count