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

dp = [[[0] * P for i in range(4)] for j in range(N + 1)]
dp[0][0][0] = 1

p = [pow(5, A[i], P) for i in range(N)]

for i in range(1, N + 1):
  a = pow(10, A[i - 1], P)
  b = pow(9, A[i - 1], P)
  c = pow(7, A[i - 1], P)

  for j in range(P):
    dp[i][0][j] += dp[i - 1][0][j]
    dp[i][1][(j + a) % P] += dp[i - 1][0][j]
    dp[i][1][j] += dp[i - 1][1][j]
    dp[i][2][(j + b) % P] += dp[i - 1][1][j]
    dp[i][2][j] += dp[i - 1][2][j]
    dp[i][3][(j + c) % P] += dp[i - 1][2][j]
    dp[i][3][j] += dp[i - 1][3][j]

ans = 0
for i in range(3, N):
  ans += dp[i][-1][(Q - p[i]) % P]

print(ans)