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#pragma GCC optimize("O3")
#define _USE_MATH_DEFINES
#include <bits/stdc++.h>

#define BOOST ios::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define FOR(a, b, c) for(int a = b; a < c; ++a)
#define PB push_back
#define MP make_pair
#define INF (int)1e9+7
#define LLINF 2e18+7
#define ALL(a) a.begin(), a.end()
#define SIZE(a) (int)a.size()

typedef unsigned long long ULL;
typedef long long LL;
typedef long double LD;

using namespace std;

//#define DEBUG

const int MAX = 5007;
const LL MOD = 1e9+7;

LL DP[MAX];

int main()
{
    #ifndef DEBUG
    BOOST;
    #endif

    int n;
    cin >> n;

    vector <int> arr(n);

    FOR(i, 0, n)
        cin >> arr[i];

    sort(ALL(arr));

    DP[0] = 1;

    FOR(i, 0, n)
    {
        for(int j = MAX - 1; j >= arr[i] - 1; --j)
        {
            int maxx = min(j + arr[i], MAX - 1);

            DP[maxx] = (DP[maxx] + DP[j]) % MOD;
        }
    }

    LL res = 0;

    FOR(i, 1, MAX)
    {
        res = (res + DP[i]) % MOD;
    }

    cout << res << "\n";
 
    return 0;
}