public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  long n = sc . nextLong ( ) ;
  long minValue = Integer . MAX_VALUE ;
  long maxValue = Integer . MIN_VALUE ;
  long minCnt = 0 ;
  long maxCnt = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    long temp = sc . nextLong ( ) ;
    if ( temp < minValue ) {
      minValue = temp ;
      minCnt = 1 ;
    }
    else if ( temp == minValue ) {
      minCnt ++ ;
    }
    if ( temp > maxValue ) {
      maxValue = temp ;
      maxCnt = 1 ;
    }
    else if ( temp == maxValue ) {
      maxCnt ++ ;
    }
  }
  if ( minValue == maxValue ) {
    System . out . println ( "0 " + n * ( n - 1 ) / 2 ) ;
  }
  else {
    System . out . println ( maxValue - minValue + " " + minCnt * maxCnt ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; long n = sc . nextLong ( ) ; long minValue = Integer . MAX_VALUE ; long maxValue = Integer . MIN_VALUE ; long minCnt = 0 ; long maxCnt = 0 ; for ( int i = 0 ; i < n ; i ++ ) { long temp = sc . nextLong ( ) ; if ( temp < minValue ) { minValue = temp ; minCnt = 1 ; } else if ( temp == minValue ) { minCnt ++ ; } if ( temp > maxValue ) { maxValue = temp ; maxCnt = 1 ; } else if ( temp == maxValue ) { maxCnt ++ ; } } if ( minValue == maxValue ) { System . out . println ( "0 ▁ " + n * ( n - 1 ) / 2 ) ; } else { System . out . println ( maxValue - minValue + " ▁ " + minCnt * maxCnt ) ; } }
(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: (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: (field_access object: (identifier) field: (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))) (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 (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal)))) alternative: (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 (assignment_expression left: (identifier) right: (identifier))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal)))) alternative: (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 (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (string_literal) right: (binary_expression left: (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))) 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: (binary_expression left: (identifier) right: (identifier)) right: (string_literal)) right: (binary_expression left: (identifier) right: (identifier))))))))))