#include #include #include #include #include #include #include #include using namespace std; using i8 = int8_t; using i32 = int; using i64 = long long; using i128 = __int128; using u64 = unsigned long long; using ll = long long; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); } i64 pow(i64 x, i64 n) { i64 res = 1; while (n > 0) { if (n & 1) res *= x; x *= x; n >>= 1; } return res; } i64 pow(i64 x, i64 n, i64 m) { i64 res = 1; while (n > 0) { if (n & 1) res = res * x % m; x = x * x % m; n >>= 1; } return res; } const i64 inf = 1ll << 60; void _main() { i64 n, p, q; cin >> n >> p >> q; vector a(n); for (i64 i = 0; i < n; i++) { cin >> a[i]; } sort(a.begin(), a.end()); vector> dp(5, vector(p, 0)); vector m = {10, 9, 7, 5}; vector> be(n, vector(4)); for (i64 i = 0; i < n; i++) { for (i64 j = 0; j < 4; j++) { be[i][j] = pow(m[j], a[i], p); } } dp[0][0] = 1; for (i64 i = 0; i < n; i++) { for (i64 j = 3; j >= 0; j--) { for (i64 k = 0; k < p; k++) { dp[j + 1][(k + be[i][j]) % p] += dp[j][k]; } } } cout << dp[4][q] << "\n"; }