public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int A = sc . nextInt ( ) ;
  int B = sc . nextInt ( ) ;
  System . out . println ( "100 100" ) ;
  boolean ans [ ] [ ] = new boolean [ 100 ] [ 100 ] ;
  for ( int i = 0 ;
  i < 100 ;
  i ++ ) {
    for ( int j = 0 ;
    j < 100 ;
    j ++ ) {
      if ( i < 50 ) {
        ans [ i ] [ j ] = true ;
      }
      else {
        ans [ i ] [ j ] = false ;
      }
    }
  }
  for ( int i = 0 ;
  i < B - 1 ;
  i ++ ) {
    ans [ 2 * ( i / 50 ) ] [ 2 * ( i % 50 ) ] = false ;
  }
  for ( int i = 0 ;
  i < A - 1 ;
  i ++ ) {
    ans [ 2 * ( i / 50 ) + 51 ] [ 2 * ( i % 50 ) ] = true ;
  }
  for ( int i = 0 ;
  i < 100 ;
  i ++ ) {
    for ( int j = 0 ;
    j < 100 ;
    j ++ ) {
      if ( ans [ i ] [ j ] ) {
        System . out . print ( '.' ) ;
      }
      else {
        System . out . print ( '#' ) ;
      }
    }
    System . out . println ( ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int A = sc . nextInt ( ) ; int B = sc . nextInt ( ) ; System . out . println ( "100 ▁ 100" ) ; boolean ans [ ] [ ] = new boolean [ 100 ] [ 100 ] ; for ( int i = 0 ; i < 100 ; i ++ ) { for ( int j = 0 ; j < 100 ; j ++ ) { if ( i < 50 ) { ans [ i ] [ j ] = true ; } else { ans [ i ] [ j ] = false ; } } } for ( int i = 0 ; i < B - 1 ; i ++ ) { ans [ 2 * ( i / 50 ) ] [ 2 * ( i % 50 ) ] = false ; } for ( int i = 0 ; i < A - 1 ; i ++ ) { ans [ 2 * ( i / 50 ) + 51 ] [ 2 * ( i % 50 ) ] = true ; } for ( int i = 0 ; i < 100 ; i ++ ) { for ( int j = 0 ; j < 100 ; j ++ ) { if ( ans [ i ] [ j ] ) { System . out . print ( ' . ' ) ; } else { System . out . print ( ' # ' ) ; } } System . out . println ( ) ; } }
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