public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int N = sc . nextInt ( ) ;
  int M = sc . nextInt ( ) ;
  boolean [ ] [ ] edges = new boolean [ N ] [ N ] ;
  for ( int m = 0 ;
  m < M ;
  m ++ ) {
    int a = sc . nextInt ( ) ;
    int b = sc . nextInt ( ) ;
    edges [ a - 1 ] [ b - 1 ] = true ;
    edges [ b - 1 ] [ a - 1 ] = true ;
  }
  solver ( N , edges ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int N = sc . nextInt ( ) ; int M = sc . nextInt ( ) ; boolean [ ] [ ] edges = new boolean [ N ] [ N ] ; for ( int m = 0 ; m < M ; m ++ ) { int a = sc . nextInt ( ) ; int b = sc . nextInt ( ) ; edges [ a - 1 ] [ b - 1 ] = true ; edges [ b - 1 ] [ a - 1 ] = true ; } solver ( N , edges ) ; }
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