from functools import lru_cache

N, P, Q = map(int, input().split())
A = sorted(map(int, input().split()))

li = [[None]*(A[-1]+1) for _ in range(11)]
def power(x, y):
    if li[x][y] == None: li[x][y] = pow(x, y, P)
    return li[x][y]

ans = 0
for i in range(N):
    a = A[i]
    for j in range(i+1, N):
        b = A[j]
        for k in range(j+1, N):
            c = A[k]
            for l in range(k+1, N):
                d = A[l]
                if (power(10, a) + power(9, b) + power(7, c) + power(5, d)) % P == Q:
                    ans += 1

print(ans)