public static void main ( String [ ] args ) {
  Scanner scanner = new Scanner ( System . in ) ;
  int n = Integer . parseInt ( scanner . nextLine ( ) ) ;
  String [ ] beauty = scanner . nextLine ( ) . split ( " " ) ;
  int [ ] bs = Arrays . stream ( beauty ) . mapToInt ( Integer :: parseInt ) . sorted ( ) . toArray ( ) ;
  long min = 0 , max = 0 ;
  for ( int i : bs ) {
    if ( i == bs [ 0 ] ) min ++ ;
    if ( i == bs [ n - 1 ] ) max ++ ;
  }
  if ( bs [ 0 ] != bs [ n - 1 ] ) {
    System . out . println ( ( bs [ n - 1 ] - bs [ 0 ] ) + " " + ( max * min ) ) ;
  }
  else {
    System . out . println ( "0 " + ( max * ( max - 1L ) ) / 2L ) ;
  }
}

public static void main ( String [ ] args ) { Scanner scanner = new Scanner ( System . in ) ; int n = Integer . parseInt ( scanner . nextLine ( ) ) ; String [ ] beauty = scanner . nextLine ( ) . split ( " ▁ " ) ; int [ ] bs = Arrays . stream ( beauty ) . mapToInt ( Integer :: parseInt ) . sorted ( ) . toArray ( ) ; long min = 0 , max = 0 ; for ( int i : bs ) { if ( i == bs [ 0 ] ) min ++ ; if ( i == bs [ n - 1 ] ) max ++ ; } if ( bs [ 0 ] != bs [ n - 1 ] ) { System . out . println ( ( bs [ n - 1 ] - bs [ 0 ] ) + " ▁ " + ( max * min ) ) ; } else { System . out . println ( "0 ▁ " + ( max * ( max - 1L ) ) / 2L ) ; } }
(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 (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (local_variable_declaration type: (array_type element: (type_identifier) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list (string_literal))))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (method_invocation object: (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) name: (identifier) arguments: (argument_list (method_reference (identifier) (identifier)))) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) 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: (array_access array: (identifier) index: (decimal_integer_literal)))) consequence: (expression_statement (update_expression (identifier)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))) consequence: (expression_statement (update_expression (identifier)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) 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: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (array_access array: (identifier) index: (decimal_integer_literal)))) right: (string_literal)) right: (parenthesized_expression (binary_expression left: (identifier) right: (identifier)))))))) alternative: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (string_literal) right: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))))) right: (decimal_integer_literal))))))))))