#include <iostream>

using namespace std;

int main()
{
    int n = 4, v[100] = {1, 7, 3, 5} , s[4851], k = 0;

    for(int i = 0; i < n - 1; i++)
        for(int j = i + 1; j < n; j++)
            s[k++] = v[i] + v[j];
    for(int i = 0; i < n; i++) cout << s[i] << " ";
    cout << endl << endl;
    for(int i = 1; i < k; i++)
    {
        int aux = s[i];
        int j = i - 1;
        while(j >= 0 && s[j] > aux)
        {
            s[j + 1] = s[j];
            j--;
        }
        s[j + 1] = aux;
    }
    for(int i = 0; i < n; i++) cout << s[i] << " ";
    cout << endl << endl;
    n = k;
    k = 0;
    for(int i = 0; i < n - 1; i++)
        if(s[i] != s[i + 1]) s[k++] = s[i];
    s[k++] = s[n - 1];
    n = k;
    for(int i = 0; i < n; i++) cout << s[i] << " ";

    return 0;
}