bai_4

#include<iostream>
#include<algorithm>
using namespace std;
int chuso(int n) {
    int temp;
    do {
        temp = n % 10;
        n /= 10;
    } while (n > 0);
    return temp;
}
bool comp(const int a, const int b) {
    return chuso(a) > chuso(b);
}
int main()
{
    int n;
    int a[100];
    cin >> n;
    for (int i = 0; i < n; i++)
    {
        cin >>a[i];
    }
    for (int i = 0; i < n; i++)
    {
        sort(a, a + n, comp);
    }
    for (int i = 0; i < n; i++)
    {
        cout << a[i];
    }
    return 0;
}