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

#define DBG(x) 

FILE *input;
int kase=0;
char a,last=-1;
char tag[4];
char buffer[4];
int bufpointer=0;
int bufcount=0;
char wordbuffer[81];
int wordpointer=0;
/* int wordcount=0; */
int charcount=0;

int myfgetc(FILE *in){
  int i;
  if(bufcount){
    bufcount--;
    return buffer[bufpointer=(bufpointer+3)%4];
  }
  else return fgetc(in);
}

void myfungetc(char a){
  bufcount++;
  buffer[bufpointer++]=a;
  bufpointer%=4;
}

void write_last_word(){
  if(charcount+wordpointer>80){
    printf("\n");
    charcount=0;
    write_last_word();
    return;
  }
  wordbuffer[wordpointer]='\0';
  printf("%s",wordbuffer);
  charcount+=wordpointer;
  wordpointer=0;
}

int max(int a,int b){
  return a>b?a:b;
}

int read_case(){
  a=myfgetc(input);
  if(a==EOF) return 0;
  return 1;
}

void print_char(char a){
  if(a=='\n'){
    write_last_word();
    if(last!=' '&&last!='\n'){
      /* printf(" "); */
      charcount++;
    }
    last='\n';
    return;
  }
  if(a==' '){
    write_last_word();
    if(last==' '||last=='\n') return;
    else{
      last=' ';
      /* printf(" "); */
      /* charcount++; */
      return;
    }
  }
  last=a;
  wordbuffer[wordpointer++]=a;
}

void read_tag(){
  int i;
  tag[0]='<';
  for(i=1;i<4;i++) tag[i]=myfgetc(input);
  tag[4]='\0';
  if(!strcmp(tag,"<br>")){
    printf("\n");
    last='\n';
    charcount=0;
    return;
  }
  else if(!strcmp(tag,"<hr>")){
    if(last!='\n') printf("\n");
    printf("----------------------------------------"
	   "----------------------------------------\n");
    last='\n';
    charcount=0;
    return;
  }
  else{
  printf("<");
  for(i=3;i>0;i--)
    myfungetc(tag[i]);
  }
}

void solve_case(){
  switch(a){
  case('<'):
    read_tag();
    break;
  default:
    print_char(a);
  }
}

int main(){
  input=fopen("html.in","r");
  assert(input!=NULL);
  while(read_case()) solve_case();
  printf("\n");
  fclose(input);
  return 0;
}