#pragma region template
#include "bits/stdc++.h"
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
const long long MOD = 1e9 + 7, MAX = 1e18, larg = 1e5, INF = -1e9;
long long A, B, C, D, E, F, G, H, I, J, K, L, N, M, O, P, Q, S, T, U, V, W, x, y, z;
long long max_value = INF, max_index = -1;
typedef long long ll;
typedef pair<ll, ll> Pa;

template <std::int_fast64_t Modulus> class modint {
	using u64 = std::int_fast64_t;
public:
	u64 a;
	constexpr modint(const u64 x = 0) noexcept : a(x% Modulus) {}
	constexpr u64& value() noexcept { return a; }
	constexpr const u64& value() const noexcept { return a; }
	constexpr modint operator+(const modint rhs) const noexcept {
		return modint(*this) += rhs;
	}
	constexpr modint operator-(const modint rhs) const noexcept {
		return modint(*this) -= rhs;
	}
	constexpr modint operator*(const modint rhs) const noexcept {
		return modint(*this) *= rhs;
	}
	constexpr modint operator/(const modint rhs) const noexcept {
		return modint(*this) /= rhs;
	}
	constexpr modint& operator+=(const modint rhs) noexcept {
		a += rhs.a;
		if (a >= Modulus) {
			a -= Modulus;
		}
		return *this;
	}
	constexpr modint& operator-=(const modint rhs) noexcept {
		if (a < rhs.a) {
			a += Modulus;
		}
		a -= rhs.a;
		return *this;
	}
	constexpr modint& operator*=(const modint rhs) noexcept {
		a = a * rhs.a % Modulus;
		return *this;
	}
	constexpr modint& operator/=(modint rhs) noexcept {
		u64 exp = Modulus - 2;
		while (exp) {
			if (exp % 2) {
				*this *= rhs;
			}
			rhs *= rhs;
			exp /= 2;
		}
		return *this;
	}
};
#pragma endregion

ll a_sum[100000];
map<int, int> app_count;
int main() {
	cin >> N >> M;
	int num;
	cin >> a_sum[0];
	app_count[0] = 1;
	a_sum[0] %= M;
	if (a_sum[0] != 0) {
		app_count[a_sum[0]] = 0;
	}
	app_count[a_sum[0]]++;

	rep(i, N-1) {
		cin >> num;
		a_sum[i + 1] = (a_sum[i] + num) % M;
		if (app_count.count(a_sum[i + 1]) == 0) {
			app_count[a_sum[i + 1]] = 0;
		}
		app_count[a_sum[i + 1]]++;
	}
	
	ll count_sum = 0;
	
	for(auto i = app_count.begin(); i != app_count.end(); i++){
		count_sum += (i->second - 1) * (i->second)/ 2;
	}
	cout << count_sum;
}

