#include <bits/stdc++.h>
using namespace std;
using namespace std;
int main()
{
string str;
vector<string> vs;
while (cin >> str)
{
vs.push_back(str);
if (cin.get() == '\n')
{
sort(vs.begin(), vs.end());
for (int i = 0; i < vs.size()-1; i++)
{
cout << vs[i]<<" ";
}
cout<<vs[vs.size()-1]<<endl;
vs.clear();
}
}
}
{
string str;
vector<string> vs;
while (cin >> str)
{
vs.push_back(str);
if (cin.get() == '\n')
{
sort(vs.begin(), vs.end());
for (int i = 0; i < vs.size()-1; i++)
{
cout << vs[i]<<" ";
}
cout<<vs[vs.size()-1]<<endl;
vs.clear();
}
}
}
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