public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int n = sc . nextInt ( ) ;
  int m = sc . nextInt ( ) ;
  int [ ] [ ] field = new int [ n ] [ m ] ;
  int [ ] [ ] before = new int [ n ] [ m ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    char [ ] arr = sc . next ( ) . toCharArray ( ) ;
    for ( int j = 0 ;
    j < m ;
    j ++ ) {
      field [ i ] [ j ] = arr [ j ] - '0' ;
    }
  }
  for ( int i = 1 ;
  i < n - 1 ;
  i ++ ) {
    for ( int j = 1 ;
    j < m - 1 ;
    j ++ ) {
      int x = field [ i - 1 ] [ j ] ;
      before [ i ] [ j ] = x ;
      field [ i - 1 ] [ j ] -= x ;
      field [ i + 1 ] [ j ] -= x ;
      field [ i ] [ j - 1 ] -= x ;
      field [ i ] [ j + 1 ] -= x ;
    }
  }
  StringBuilder sb = new StringBuilder ( ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    for ( int j = 0 ;
    j < m ;
    j ++ ) {
      sb . append ( before [ i ] [ j ] ) ;
    }
    sb . append ( "\n" ) ;
  }
  System . out . print ( sb ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; int m = sc . nextInt ( ) ; int [ ] [ ] field = new int [ n ] [ m ] ; int [ ] [ ] before = new int [ n ] [ m ] ; for ( int i = 0 ; i < n ; i ++ ) { char [ ] arr = sc . next ( ) . toCharArray ( ) ; for ( int j = 0 ; j < m ; j ++ ) { field [ i ] [ j ] = arr [ j ] - '0' ; } } for ( int i = 1 ; i < n - 1 ; i ++ ) { for ( int j = 1 ; j < m - 1 ; j ++ ) { int x = field [ i - 1 ] [ j ] ; before [ i ] [ j ] = x ; field [ i - 1 ] [ j ] -= x ; field [ i + 1 ] [ j ] -= x ; field [ i ] [ j - 1 ] -= x ; field [ i ] [ j + 1 ] -= x ; } } StringBuilder sb = new StringBuilder ( ) ; for ( int i = 0 ; i < n ; i ++ ) { for ( int j = 0 ; j < m ; j ++ ) { sb . append ( before [ i ] [ j ] ) ; } sb . append ( " \n " ) ; } System . out . print ( sb ) ; }
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