#include <iostream>

using namespace std;

int main()
{
    int save,mang[20];
    cout << "Nhap n chu so" << endl;3
    int n;
    cin >> n;
    for (int i=0;i<n;i++){
        cout<<"Nhap mang"<<"a["<<i<<"]= ";
        cin>> mang[i];
        cout<<endl;
    }
    for (int i=0;i<n;i++)
    {
        for(int check=i;check<n;check++){
            if (mang[i]>mang[check]){
                mang[i]=save;
                mang[i]=mang[check];
                mang[check]=save;
            }
        }
    }
    for (int i=0;i<n;i++)
        cout<<"mang[" <<i<<"] : "<<mang[i]<<endl;
    return 0;
}