print('''Albania
Algeria
Angola
Argentina
China
''')

#include <bits/stdc++.h>
using namespace std;
int i;
int main()
{
    string s[1005],d = "lvtou";
    while (d != "end")
    {
        cin >> d;
        if (d != "end") s[++i] = d;
    }
    sort(s,s + i + 1);
    for (int j = 1;j <= i;j++) cout << s[j] << endl;
}