public static void main ( String [ ] args ) throws IOException {
  String [ ] sr = br . readLine ( ) . split ( " " ) ;
  int n = next ( sr , 0 ) ;
  int m = next ( sr , 1 ) ;
  int [ ] [ ] arr = new int [ n ] [ m ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    sr = br . readLine ( ) . split ( " " ) ;
    for ( int j = 0 ;
    j < m ;
    j ++ ) arr [ i ] [ j ] = next ( sr , j ) ;
  }
  System . out . println ( checkreverse ( arr , n ) ) ;
}

public static void main ( String [ ] args ) throws IOException { String [ ] sr = br . readLine ( ) . split ( " ▁ " ) ; int n = next ( sr , 0 ) ; int m = next ( sr , 1 ) ; int [ ] [ ] arr = new int [ n ] [ m ] ; for ( int i = 0 ; i < n ; i ++ ) { sr = br . readLine ( ) . split ( " ▁ " ) ; for ( int j = 0 ; j < m ; j ++ ) arr [ i ] [ j ] = next ( sr , j ) ; } System . out . println ( checkreverse ( arr , n ) ) ; }
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