public static void main ( String args [ ] ) {
  Scanner cin = new Scanner ( System . in ) ;
  int n = cin . nextInt ( ) ;
  int [ ] juice = new int [ 1006 ] ;
  int x = 0 ;
  for ( int i = 0 ;
  i != n ;
  ++ i ) {
    x += ( juice [ i ] = cin . nextInt ( ) ) ;
  }
  int ave = x / n ;
  int plus_pos = 0 , minus_pos = 0 , plus_cnt = 0 , minus_cnt = 0 ;
  for ( int i = 0 ;
  i != n ;
  ++ i ) {
    if ( juice [ i ] > ave ) {
      plus_pos = i ;
      plus_cnt ++ ;
    }
    if ( juice [ i ] < ave ) {
      minus_pos = i ;
      minus_cnt ++ ;
    }
  }
  if ( plus_cnt == 1 && minus_cnt == 1 && ave - juice [ minus_pos ] == juice [ plus_pos ] - ave ) {
    System . out . printf ( "%d ml. from cup #%d to cup #%d.\n" , ave - juice [ minus_pos ] , minus_pos + 1 , plus_pos + 1 ) ;
  }
  else if ( plus_cnt == 0 && minus_cnt == 0 ) {
    System . out . println ( "Exemplary pages." ) ;
  }
  else {
    System . out . println ( "Unrecoverable configuration." ) ;
  }
  cin . close ( ) ;
}

public static void main ( String args [ ] ) { Scanner cin = new Scanner ( System . in ) ; int n = cin . nextInt ( ) ; int [ ] juice = new int [ 1006 ] ; int x = 0 ; for ( int i = 0 ; i != n ; ++ i ) { x += ( juice [ i ] = cin . nextInt ( ) ) ; } int ave = x / n ; int plus_pos = 0 , minus_pos = 0 , plus_cnt = 0 , minus_cnt = 0 ; for ( int i = 0 ; i != n ; ++ i ) { if ( juice [ i ] > ave ) { plus_pos = i ; plus_cnt ++ ; } if ( juice [ i ] < ave ) { minus_pos = i ; minus_cnt ++ ; } } if ( plus_cnt == 1 && minus_cnt == 1 && ave - juice [ minus_pos ] == juice [ plus_pos ] - ave ) { System . out . printf ( " % d ▁ ml . ▁ from ▁ cup ▁ # % d ▁ to ▁ cup ▁ # % d . \n " , ave - juice [ minus_pos ] , minus_pos + 1 , plus_pos + 1 ) ; } else if ( plus_cnt == 0 && minus_cnt == 0 ) { System . out . println ( " Exemplary ▁ pages . " ) ; } else { System . out . println ( " Unrecoverable ▁ configuration . " ) ; } cin . close ( ) ; }
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