public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int n = sc . nextInt ( ) ;
  int m = sc . nextInt ( ) ;
  ArrayList [ ] a = new ArrayList [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    a [ i ] = new ArrayList < Integer > ( ) ;
    for ( int j = 0 ;
    j < m ;
    j ++ ) {
      a [ i ] . add ( sc . nextInt ( ) - 1 ) ;
    }
  }
  int min = n ;
  for ( int i = 0 ;
  i < m ;
  i ++ ) {
    int [ ] mnum = new int [ m ] ;
    for ( int j = 0 ;
    j < n ;
    j ++ ) {
      mnum [ ( int ) ( a [ j ] . get ( 0 ) ) ] ++ ;
    }
    int max = 0 , maxpos = 0 ;
    for ( int j = 0 ;
    j < m ;
    j ++ ) {
      if ( mnum [ j ] > max ) {
        max = mnum [ j ] ;
        maxpos = j ;
      }
    }
    if ( max < min ) min = max ;
    for ( int j = 0 ;
    j < n ;
    j ++ ) {
      a [ j ] . removeAll ( Arrays . asList ( new Integer [ ] {
        maxpos }
        ) ) ;
      }
    }
    System . out . println ( min ) ;
  }
  
public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; int m = sc . nextInt ( ) ; ArrayList [ ] a = new ArrayList [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { a [ i ] = new ArrayList < Integer > ( ) ; for ( int j = 0 ; j < m ; j ++ ) { a [ i ] . add ( sc . nextInt ( ) - 1 ) ; } } int min = n ; for ( int i = 0 ; i < m ; i ++ ) { int [ ] mnum = new int [ m ] ; for ( int j = 0 ; j < n ; j ++ ) { mnum [ ( int ) ( a [ j ] . get ( 0 ) ) ] ++ ; } int max = 0 , maxpos = 0 ; for ( int j = 0 ; j < m ; j ++ ) { if ( mnum [ j ] > max ) { max = mnum [ j ] ; maxpos = j ; } } if ( max < min ) min = max ; for ( int j = 0 ; j < n ; j ++ ) { a [ j ] . removeAll ( Arrays . asList ( new Integer [ ] { maxpos } ) ) ; } } System . out . println ( min ) ; }
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