#include <bits/stdc++.h>
using namespace std;

signed main(){
  wstring_convert< codecvt_utf8_utf16< char16_t >, char16_t > converter;
  string s; cin >> s;
  u16string us = converter.from_bytes( s );
  vector< int > st;
  int wcnt = 0, curwcnt = 0, head = -1, ptr = 0;
  for( auto ch : us ){
    if( ch == u'w' ){
      ++curwcnt;
    }
    else{
      if( curwcnt ){
        if( wcnt < curwcnt )
          wcnt = curwcnt,
          st.clear(),
          st.emplace_back( head );
        else if( wcnt == curwcnt )
          st.emplace_back( head );
        curwcnt = 0;
        head = ptr;
      }
    }
    ++ptr;
  }
  for( int i = 0; i < st.size(); ++i ){
    int p = 0;
    for( auto ch : us ){
      if( ch == u'w' )
        break;
      if( p >= st[ i ] )
        cout << ch; 
      ++p;
    }
    cout << endl;
  }
  return 0;
}