/* Auteur: Tchetch-2 */
/* Plateforme: Linux/Win32 */
/* Compilateur/version: gcc/4.0.3 */
/* Dernière modif: 8 aout 08:20 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/* Fonction getc_unlocked et putc_unlocked sont POSIX.1 */
#ifndef WIN32
#undef getc
#define getc getc_unlocked

#undef putc
#define putc putc_unlocked
#endif

#define IN_TAG	1
#define SPACE	2
#define IN_A	4
#define IN_IMG	8

#define BUFFER_SIZE 1024

char buffer[BUFFER_SIZE];
int a_img[BUFFER_SIZE];

inline char parse_stdin()
{
	int c=0;
	static int state=0;
	int i=0, j=0;

	buffer[0]='\0';
	a_img[0]=-1;
	while(i<BUFFER_SIZE)
	{
		c=getc(stdin);
		if(c==EOF)
		{
			break;
		}
		if(c=='<' && !(state & IN_TAG))
		{
			state+=IN_TAG;
			a_img[j]=i;
			++j;
		}
		if(state & IN_TAG)
		{
			if(c>64&&c<91)
			{
				c=c+32;
			}
			
			if(c=='\n' || c=='\r')
			{
				if(buffer[i-1]!='=')
				{
					c=' ';
				} else {

					continue;
				}
			}
			if(c==' ')
			{
				if(!(state & SPACE))
				{
					c='\0';
				} else {
					continue;
				}
			}
			
			buffer[i]=(char)c;
			
			if(state & SPACE)
			{
				a_img[j]=i;
				++j;
				state-=SPACE;
			}
			if(c=='\0')
			{
				state+=SPACE;
			}
			++i;
		}
		if(c=='>' && (state & IN_TAG))
		{
			state-=IN_TAG;
			break;
		}
	}
	buffer[i]='\0';
	a_img[j]=-1;
	return c;
}

inline void get_a_img()
{
	int i=0, j=0;
	int x=0;
	int static state=0;
	char href[]="href";
	char src[]="src";
	int found=0;
	char tmp;
	
	while((x=a_img[i])!=-1)
	{
		if(buffer[x]=='<')
		{
			state=0;
		}
		if(strcmp(&buffer[x], "<a")==0)
		{
			state+=IN_A;
			++i;
			continue;
		} else if(strcmp(&buffer[x], "<img")==0)
		{
			state+=IN_IMG;
			++i;
			continue;
		}
		
		if(state & IN_A)
		{
			if(buffer[x]=='h')
			{
				j=1;
				found=1;
				while((href[j]!='\0'))
				{
					if(buffer[x+j]!=href[j])
					{
						found=0;
						break;
					}
					++j;
				}
				if(x+j+1>=BUFFER_SIZE-1)
				{
					break;
				}
				if(found && (buffer[x+j]<97 || 
							buffer[x+j]>122))
				{
					++j;
					found=0;
					while((tmp=buffer[x+j])!='\0')
					{
						if((tmp==' ' || 
							tmp=='>' ||
							tmp=='\'' ||
							tmp=='"') &&
								found)
						{
							break;
						}
						if((tmp>96&&tmp <123||
								tmp==47||
								tmp==46) &&
								!found)
						{
							found=1;
						}				
						if(found)
						{
							putc(tmp, stdout);
						}
						++j;
					}
					putc('\n', stdout);
				}
				
			} else {
				++i;
				continue;
			}
		}
		if(state & IN_IMG)
		{
			if(buffer[x]=='s')
			{
				j=1;
				found=1;
				while((src[j]!='\0'))
				{
					if(buffer[x+j]!=src[j])
					{
						found=0;
						break;
					}
					++j;
				}
				if(x+j+1>=BUFFER_SIZE-1)
				{
					break;
				}
				if(found && (buffer[x+j]<97 || 
							buffer[x+j]>122))
				{
					++j;
					found=0;
					while((tmp=buffer[x+j])!='\0')
					{
						if((tmp==' ' || 
							tmp=='>' ||
							tmp=='\'' ||
							tmp=='"') &&
								found)
						{
							break;
						}
						if((tmp>96&&tmp<123 ||
								tmp==47||
								tmp==46) &&
								!found)
						{
							found=1;
						}				
						if(found)
						{
							putc(tmp, stdout);
						}
						++j;
					}
					putc('\n', stdout);
				}
				
			} else {
				++i;
				continue;
			}
		}
		++i;
	}
}

int main(int argc, char **argv)
{
	char c='a';
	
	while(1)
	{
		c=parse_stdin();
		get_a_img();
		if(c==EOF)
		{
			break;
		}
	}
	return 0;
}