#include <bits/stdc++.h>
using namespace std;

using i8 = int8_t;
using i16 = int16_t;
using i32 = int32_t;
using i64 = int64_t;
using isize = ptrdiff_t;
using u8 = uint8_t;
using u16 = uint16_t;
using u32 = uint32_t;
using u64 = uint64_t;
using usize = size_t;
using f32 = float_t;
using f64 = double_t;

inline constexpr i32 Modulus = 1e9 + 7;

int main(void)
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    u32 n;
    cin >> n;

    vector<u32> array(n);
    for (u32& value : array)
    {
        cin >> value;
    }

    map<u32, u32> frequency;
    for (u32 index = 0; index < n; index += 1)
    {
        u32 value = array[index];
        frequency[value] += 1;
    }

    u64 answer = 1;
    for (auto [_, count] : frequency)
    {
        answer = (answer * (count + 1)) % Modulus;
    }

    cout << answer - 1;

    return 0;
}