Andy's First Dictionary

10815

#include <iostream>
#include <sstream>
#include <bitset>
#include <cstdio>
#include <string>
#include <cstring>
#include <vector>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <algorithm>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <numeric>
#include <list>
#define FOR(i,A) for(typeof (A).begin() i = (A).begin() ; i != (A).end() ; i++)
#define mp make_pair
#define debug( x ) cout << #x << " = " << x << endl
#define clr(v,x) memset( v, x , sizeof v )
#define all(x) (x).begin() , (x).end()
#define rall(x) (x).rbegin() , (x).rend()
#define f(i,a,b) for(int i = a ; i < b ; i++)
#define fd(i,a,b) for(int i = a ; i >= b ; i--)
#define PI acos( -1.0 )
#define EPS 1E-9
#define TAM 100010

using namespace std;

typedef pair<int,int> ii ;
typedef long long ll ;
typedef long double ld ;
typedef pair<int,ii> pii ;

set<string> v ;

void parse( string s ){
	f( i , 0 , s.size() ){
		if( !isalpha( s[ i ] ) ) s[ i ] = ' ' ;
		else s[ i ] = tolower( s[ i ] ) ;
	}
	string cad ;
	istringstream is( s ) ;
	while( is >> cad ) v.insert( cad ) ;
}

int main(){

	string s ;
	while( cin >> s ) parse( s ) ;
	FOR(i,v) cout << *i << endl ;

	return 0 ;
}