#include <iostream>
#include<ctime>
#include<stdlib.h>
using namespace std;


int main()
{
  string nume[]={"Alin","Florin","Bogdan","Sever"};
  int ok;

  do{
    ok = 1;
  for(int i=0;i<=2;i++)
    if(nume[i] > nume[i+1])swap(nume[i],nume[i+1]),ok = 0;


}while(!ok);
for(int i=0;i<=3;i++) cout <<nume[i]<<' ';
}