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//#pragma comment(linker, "/stack:200000000")
#ifndef LOCAL
#pragma GCC optimize("O3")
#endif
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>

using namespace std;

#define sim template < class c
#define ris return * this
#define dor > debug & operator <<
#define eni(x) sim > typename \
  enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) {
sim > struct rge { c b, e; };
sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c* x) -> decltype(cerr << *x, 0);
sim > char dud(...);
struct debug {
#ifdef LOCAL
~debug() { cerr << endl; }
eni(!=) cerr << boolalpha << i; ris; }
eni(==) ris << range(begin(i), end(i)); }
sim, class b dor(pair < b, c > d) {
  ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
  *this << "[";
  for (auto it = d.b; it != d.e; ++it)
	*this << ", " + 2 * (it == d.b) << *it;
  ris << "]";
}
#else
sim dor(const c&) { ris; }
#endif
};
#define var(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "

#define pb push_back
#define mp make_pair
#define st first
#define nd second
#define ALL(x) (x).begin(), (x).end()
#define SZ(x) ((int)(x).size())
#define un(x) x.erase(unique(ALL(x)),x.end())
#define REP(i,x,v)for(int i=x;i<=v;i++)
#define REPD(i,x,v)for(int i=x;i>=v;i--)
#define FOR(i,v)for(int i=0;i<v;i++)
#define TRAV(i,v)for(auto &i:(v))
#define REMIN(x,v) x=min(x,v);
#define REMAX(x,v) x=max(x,v);

mt19937_64 rng(134569);
int rd(int l, int r) {return uniform_int_distribution<int>(l, r)(rng);}

using ll=long long;
using pii=pair<int,int>;
using pll=pair<ll,ll>;
using vi=vector<int>;
using vll=vector<ll>;
const int MOD=1e9+7;//998244353;

int dp[5002][5002];
int a[5001];


int main()
{
	ios_base::sync_with_stdio(0);cin.tie(0);
	cout << fixed << setprecision(11);
	cerr << fixed << setprecision(6);
  int n;cin>>n;
  FOR(i, n) {
    cin>>a[i+1];
  }
  sort(a+1, a+n+1);
  dp[0][0]=1;
  REP(i,1,n) {
    REP(j,0,5001) dp[i][j]=dp[i-1][j];
    dp[i][0]=1;
    REP(j, a[i]-1, 5001) {
      int j1=min(j+a[i],5001);
      dp[i][j1] = (dp[i][j1]+dp[i-1][j])%MOD;
    }
  }
  int sum=0;
  REP(i,1,5001) sum=(sum+dp[n][i])%MOD;
  cout<<sum<<"\n";

    return 0;
}