public static void main ( String [ ] args ) throws Exception {
  BufferedReader br = new BufferedReader ( new InputStreamReader ( System . in ) ) ;
  String [ ] arr = br . readLine ( ) . split ( " " , 3 ) ;
  int r = Integer . parseInt ( arr [ 0 ] ) ;
  int c = Integer . parseInt ( arr [ 1 ] ) ;
  int d = Integer . parseInt ( arr [ 2 ] ) ;
  int [ ] [ ] field = new int [ r ] [ c ] ;
  for ( int i = 0 ;
  i < r ;
  i ++ ) {
    String [ ] line = br . readLine ( ) . split ( " " , c ) ;
    for ( int j = 0 ;
    j < c ;
    j ++ ) {
      field [ i ] [ j ] = Integer . parseInt ( line [ j ] ) ;
    }
  }
  int max = 0 ;
  for ( int i = 0 ;
  i < r ;
  i ++ ) {
    for ( int j = ( ( d - i ) % 2 == 0 ) ? 0 : 1 ;
    j < c && j <= d - i ;
    j += 2 ) {
      int x = field [ i ] [ j ] ;
      if ( max < x ) {
        max = x ;
      }
    }
  }
  System . out . println ( max ) ;
}

public static void main ( String [ ] args ) throws Exception { BufferedReader br = new BufferedReader ( new InputStreamReader ( System . in ) ) ; String [ ] arr = br . readLine ( ) . split ( " ▁ " , 3 ) ; int r = Integer . parseInt ( arr [ 0 ] ) ; int c = Integer . parseInt ( arr [ 1 ] ) ; int d = Integer . parseInt ( arr [ 2 ] ) ; int [ ] [ ] field = new int [ r ] [ c ] ; for ( int i = 0 ; i < r ; i ++ ) { String [ ] line = br . readLine ( ) . split ( " ▁ " , c ) ; for ( int j = 0 ; j < c ; j ++ ) { field [ i ] [ j ] = Integer . parseInt ( line [ j ] ) ; } } int max = 0 ; for ( int i = 0 ; i < r ; i ++ ) { for ( int j = ( ( d - i ) % 2 == 0 ) ? 0 : 1 ; j < c && j <= d - i ; j += 2 ) { int x = field [ i ] [ j ] ; if ( max < x ) { max = x ; } } } System . out . println ( max ) ; }
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