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

int main() {
    int sum = 0;
    int n;
    cin >> n;
    vector<int> coins(n);
    for (int i = 0; i < n; i++) {
        cin >> coins[i];
        sum += coins[i];
        
    }

    sort(coins.begin(), coins.end());
    reverse(coins.begin(), coins.end());

    int ammount = 0, out = 0;
    while (ammount <= sum/2) {
        ammount += coins[out];
        out++;
    }
    cout<<out;


}