Naeioi

#include <string.h>

#include <ctype.h>

#include <stdlib.h>

using namespace std;

const int maxn=5005,maxl=205;

int tot=0;

char word[maxn][maxl],now[maxl];

bool find(void)

{

    for (int i=0; i<tot; i++)

        if (!strcmp(now,word[i]))

            return true;

    return false;

}

int cmp(const void *a,const void *b)

{

    return strcmp((char*)a,(char*)b);

}

int main()

{

#ifndef ONLINE_JUDGE

    freopen("10815.in","r",stdin);

    freopen("10815.out","w",stdout);

#endif

    for (;;)

    {

        do

        {

            *now=getchar();

        }

        while (!isalpha(*now)&&*now!=EOF);

        now[1]=0;

        if (scanf("%[qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM]",now+1)==EOF)

            break;

        for (int i=0; now[i]; i++)

            now[i]=tolower(now[i]);

        if (!find())

            memcpy(word[tot++],now,sizeof(now));

    }

    qsort(word,tot,sizeof(word[0]),cmp);

    for (int i=0; i<tot; i++)

        printf("%s\n",word[i]);

    fclose(stdin);

    fclose(stdout);

    return 0;

}