#include <iostream>
#include <vector>
#include <algorithm>
typedef struct lt{
double value;
lt *left;
lt *right;
}o_list;
void main(){
using namespace std;
vector<double> vec;
double tmp;
for(int k=0;k<5;k++)
{
cin >> tmp;
vec.push_back(tmp);
}
sort(vec.begin(),vec.end());
o_list *old=NULL;
for(int v=0;v<5;v++)
{
o_list *t =(o_list *)malloc(sizeof(o_list));
t->left=old;
t->right=NULL;
t->value=vec[v];
old=t;
}
do {
cout << old->value << endl;
old=old->left;
}while(old!=NULL);
}