from heapq import heappush, heappop, heapify
import sys
from collections import defaultdict, deque,Counter
from math import ceil, floor, sqrt, factorial,gcd
from itertools import permutations, combinations,product
from bisect import bisect_left, bisect_right
from copy import deepcopy
from functools import lru_cache #@lru_cache(maxsize=None)
from fractions import Fraction
sys.setrecursionlimit(10**6)
# input = sys.stdin.readline
vector1 = [[0, -1], [1, 0], [0, 1], [-1, 0]]
vector2 = [[0, 1], [1, 0], [-1, 0], [0, -1],
           [1,-1], [-1, 1], [1, 1], [-1, -1]]
from copy import deepcopy

def main():
    N,P,Q = map(int,input().split())
    A = list(map(int,input().split())) 
    A.sort()
    array = [[0 for i in range(P)]]
    for i in range(N):
        m = pow(5,A[i],P)
        tmp = deepcopy(array[-1])
        tmp[m] += 1
        array.append(tmp)
    ans = 0
    #print(array)
    for i in range(N-3):
        for j in range(i+1,N-2):
            if A[i] == A[j]:
                continue
            for k in range(j+1,N-1):
                if A[j] == A[k]:
                    continue
                t = (pow(10,A[i],P) + pow(9,A[j],P) + pow(7,A[k],P))%P
                t = (Q-t)%P
                ans += array[-1][t]-array[k+1][t]
    print(ans)       
    


if __name__ == '__main__':
    main()