public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int n = sc . nextInt ( ) ;
  long [ ] flower = new long [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    flower [ i ] = sc . nextInt ( ) ;
  }
  HashMap < Integer , Integer > map = new HashMap < > ( ) ;
  long min = Integer . MAX_VALUE ;
  long max = 0 ;
  for ( long i : flower ) {
    min = Math . min ( min , i ) ;
    max = Math . max ( max , i ) ;
  }
  long count_max = 0 ;
  long count_min = 0 ;
  for ( long i : flower ) {
    if ( i == max ) {
      count_max ++ ;
    }
    if ( i == min ) {
      count_min ++ ;
    }
  }
  if ( max == min ) {
    if ( count_max % 2 == 0 ) {
      System . out . println ( 0 + " " + ( count_max / 2 ) * ( count_max - 1 ) ) ;
    }
    else {
      System . out . println ( 0 + " " + ( ( count_max - 1 ) / 2 ) * count_max ) ;
    }
  }
  else {
    System . out . print ( ( max - min ) + " " ) ;
    System . out . println ( count_max * count_min ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; long [ ] flower = new long [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { flower [ i ] = sc . nextInt ( ) ; } HashMap < Integer , Integer > map = new HashMap < > ( ) ; long min = Integer . MAX_VALUE ; long max = 0 ; for ( long i : flower ) { min = Math . min ( min , i ) ; max = Math . max ( max , i ) ; } long count_max = 0 ; long count_min = 0 ; for ( long i : flower ) { if ( i == max ) { count_max ++ ; } if ( i == min ) { count_min ++ ; } } if ( max == min ) { if ( count_max % 2 == 0 ) { System . out . println ( 0 + " ▁ " + ( count_max / 2 ) * ( count_max - 1 ) ) ; } else { System . out . println ( 0 + " ▁ " + ( ( count_max - 1 ) / 2 ) * count_max ) ; } } else { System . out . print ( ( max - min ) + " ▁ " ) ; System . out . println ( count_max * count_min ) ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (identifier))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier) (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (field_access object: (identifier) field: (identifier)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (enhanced_for_statement type: (integral_type) name: (identifier) value: (identifier) body: (block (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier))))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (enhanced_for_statement type: (integral_type) name: (identifier) value: (identifier) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (update_expression (identifier))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (update_expression (identifier))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (decimal_integer_literal) right: (string_literal)) right: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))))))))) alternative: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (decimal_integer_literal) right: (string_literal)) right: (binary_expression left: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal))) right: (identifier))))))))) alternative: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) right: (string_literal))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (identifier)))))))))