public static void main ( String [ ] args ) {
  Scanner input = new Scanner ( System . in ) ;
  String s = input . next ( ) ;
  long ans = 0 ;
  for ( int i = 0 ;
  i < s . length ( ) ;
  i ++ ) {
    String sub = s . substring ( i ) ;
    if ( sub . contains ( "bear" ) ) {
      ans += ( sub . length ( ) - 3 - sub . indexOf ( "bear" ) ) ;
    }
  }
  System . out . println ( ans ) ;
}

public static void main ( String [ ] args ) { Scanner input = new Scanner ( System . in ) ; String s = input . next ( ) ; long ans = 0 ; for ( int i = 0 ; i < s . length ( ) ; i ++ ) { String sub = s . substring ( i ) ; if ( sub . contains ( " bear " ) ) { ans += ( sub . length ( ) - 3 - sub . indexOf ( " bear " ) ) ; } } System . out . println ( ans ) ; }
(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: (type_identifier) 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: (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: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) update: (update_expression (identifier)) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))) (if_statement condition: (parenthesized_expression (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (string_literal)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (decimal_integer_literal)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (string_literal))))))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))