public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int N = sc . nextInt ( ) ;
  int M = sc . nextInt ( ) ;
  int a [ ] [ ] = new int [ N ] [ M ] ;
  for ( int i = 0 ;
  i < N ;
  i ++ ) {
    String s = sc . next ( ) ;
    for ( int j = 0 ;
    j < M ;
    j ++ ) {
      a [ i ] [ j ] = Integer . valueOf ( s . substring ( j , j + 1 ) ) ;
    }
  }
  int ret [ ] [ ] = new int [ N ] [ M ] ;
  for ( int i = 1 ;
  i < N - 1 ;
  i ++ ) {
    for ( int j = 1 ;
    j < M - 1 ;
    j ++ ) {
      int min = 10 ;
      min = Math . min ( a [ i ] [ j - 1 ] , min ) ;
      min = Math . min ( a [ i ] [ j + 1 ] , min ) ;
      min = Math . min ( a [ i + 1 ] [ j ] , min ) ;
      min = Math . min ( a [ i - 1 ] [ j ] , min ) ;
      a [ i ] [ j - 1 ] -= min ;
      a [ i ] [ j + 1 ] -= min ;
      a [ i + 1 ] [ j ] -= min ;
      a [ i - 1 ] [ j ] -= min ;
      ret [ i ] [ j ] = min ;
    }
  }
  for ( int i = 0 ;
  i < N ;
  i ++ ) {
    for ( int j = 0 ;
    j < M ;
    j ++ ) {
      System . out . print ( ret [ i ] [ j ] ) ;
    }
    System . out . println ( ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int N = sc . nextInt ( ) ; int M = sc . nextInt ( ) ; int a [ ] [ ] = new int [ N ] [ M ] ; for ( int i = 0 ; i < N ; i ++ ) { String s = sc . next ( ) ; for ( int j = 0 ; j < M ; j ++ ) { a [ i ] [ j ] = Integer . valueOf ( s . substring ( j , j + 1 ) ) ; } } int ret [ ] [ ] = new int [ N ] [ M ] ; for ( int i = 1 ; i < N - 1 ; i ++ ) { for ( int j = 1 ; j < M - 1 ; j ++ ) { int min = 10 ; min = Math . min ( a [ i ] [ j - 1 ] , min ) ; min = Math . min ( a [ i ] [ j + 1 ] , min ) ; min = Math . min ( a [ i + 1 ] [ j ] , min ) ; min = Math . min ( a [ i - 1 ] [ j ] , min ) ; a [ i ] [ j - 1 ] -= min ; a [ i ] [ j + 1 ] -= min ; a [ i + 1 ] [ j ] -= min ; a [ i - 1 ] [ j ] -= min ; ret [ i ] [ j ] = min ; } } for ( int i = 0 ; i < N ; i ++ ) { for ( int j = 0 ; j < M ; j ++ ) { System . out . print ( ret [ i ] [ j ] ) ; } System . out . println ( ) ; } }
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