public static void main ( String [ ] args ) {
  Scanner input = new Scanner ( System . in ) ;
  int H = input . nextInt ( ) ;
  int W = input . nextInt ( ) ;
  String [ ] HS = new String [ H ] ;
  boolean [ ] rows = new boolean [ H ] ;
  boolean [ ] cols = new boolean [ W ] ;
  Arrays . fill ( rows , false ) ;
  Arrays . fill ( cols , false ) ;
  for ( int i = 0 ;
  i < H ;
  i ++ ) {
    HS [ i ] = input . next ( ) ;
  }
  for ( int j = 0 ;
  j < H ;
  j ++ ) {
    if ( HS [ j ] . indexOf ( "#" ) != - 1 ) {
      rows [ j ] = true ;
    }
    for ( int i = 0 ;
    i < W ;
    i ++ ) {
      if ( HS [ j ] . charAt ( i ) == '#' ) {
        cols [ i ] = true ;
      }
    }
  }
  for ( int i = 0 ;
  i < H ;
  i ++ ) {
    if ( rows [ i ] ) {
      for ( int j = 0 ;
      j < W ;
      j ++ ) {
        if ( cols [ j ] ) {
          System . out . print ( HS [ i ] . charAt ( j ) ) ;
        }
      }
      System . out . println ( ) ;
    }
  }
}

public static void main ( String [ ] args ) { Scanner input = new Scanner ( System . in ) ; int H = input . nextInt ( ) ; int W = input . nextInt ( ) ; String [ ] HS = new String [ H ] ; boolean [ ] rows = new boolean [ H ] ; boolean [ ] cols = new boolean [ W ] ; Arrays . fill ( rows , false ) ; Arrays . fill ( cols , false ) ; for ( int i = 0 ; i < H ; i ++ ) { HS [ i ] = input . next ( ) ; } for ( int j = 0 ; j < H ; j ++ ) { if ( HS [ j ] . indexOf ( " # " ) != - 1 ) { rows [ j ] = true ; } for ( int i = 0 ; i < W ; i ++ ) { if ( HS [ j ] . charAt ( i ) == ' # ' ) { cols [ i ] = true ; } } } for ( int i = 0 ; i < H ; i ++ ) { if ( rows [ i ] ) { for ( int j = 0 ; j < W ; j ++ ) { if ( cols [ j ] ) { System . out . print ( HS [ i ] . charAt ( j ) ) ; } } System . out . println ( ) ; } } }
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(identifier)) name: (identifier) arguments: (argument_list)))))))))