public static void main ( String [ ] args ) {
  Scanner input = new Scanner ( System . in ) ;
  int test = input . nextInt ( ) ;
  int a [ ] = new int [ test ] ;
  for ( int i = 0 ;
  i < test ;
  i ++ ) {
    a [ i ] = input . nextInt ( ) ;
  }
  boolean swap = true ;
  while ( swap ) {
    swap = false ;
    for ( int i = 0 ;
    i < test - 1 ;
    i ++ ) {
      if ( a [ i ] > a [ i + 1 ] ) {
        int temp = a [ i ] ;
        a [ i ] = a [ i + 1 ] ;
        a [ i + 1 ] = temp ;
        System . out . println ( ( i + 1 ) + " " + ( i + 2 ) ) ;
        swap = true ;
      }
    }
  }
}

public static void main ( String [ ] args ) { Scanner input = new Scanner ( System . in ) ; int test = input . nextInt ( ) ; int a [ ] = new int [ test ] ; for ( int i = 0 ; i < test ; i ++ ) { a [ i ] = input . nextInt ( ) ; } boolean swap = true ; while ( swap ) { swap = false ; for ( int i = 0 ; i < test - 1 ; i ++ ) { if ( a [ i ] > a [ i + 1 ] ) { int temp = a [ i ] ; a [ i ] = a [ i + 1 ] ; a [ i + 1 ] = temp ; System . out . println ( ( i + 1 ) + " ▁ " + ( i + 2 ) ) ; swap = true ; } } } }
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