import sys
input = sys.stdin.readline
N, P, Q = map(int, input().split())
A = list(map(int, input().split()))
A.sort()
dp = [[0 for _ in range(P)] for _ in range(N+1)]
for i in range(N):
    q = pow(5, A[i], P)
    for j in range(P):
        if j==q:
            dp[i+1][j] = dp[i][j]+1
        else:
            dp[i+1][j] = dp[i][j]
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]
            tmp = pow(10, a, P)+pow(9, b, P)+pow(7, c, P)
            tmp %= P
            tmp = (Q-tmp)%P
            cnt = dp[N][tmp]-dp[k+1][tmp]
            ans += cnt
print(ans)