public static void main ( String [ ] args ) throws IOException {
  BufferedReader br = new BufferedReader ( new InputStreamReader ( System . in ) ) ;
  PrintWriter pw = new PrintWriter ( System . out ) ;
  int t = 1 ;
  while ( t -- > 0 ) {
    int n = Integer . parseInt ( br . readLine ( ) ) ;
    ArrayList < Node > adj [ ] = new ArrayList [ n + 1 ] ;
    for ( int i = 0 ;
    i <= n ;
    i ++ ) adj [ i ] = new ArrayList < > ( ) ;
    long sum = 0 ;
    for ( int i = 0 ;
    i < n ;
    i ++ ) {
      String str [ ] = br . readLine ( ) . trim ( ) . split ( " " ) ;
      int x = Integer . parseInt ( str [ 0 ] ) ;
      int y = Integer . parseInt ( str [ 1 ] ) ;
      int z = Integer . parseInt ( str [ 2 ] ) ;
      sum += z ;
      adj [ x ] . add ( new Node ( y , 0 ) ) ;
      adj [ y ] . add ( new Node ( x , z ) ) ;
    }
    long min = Long . MAX_VALUE ;
    for ( Node x : adj [ 1 ] ) {
      cost = 0 ;
      min = Math . min ( min , sum - dsf ( adj , x , 1 , new boolean [ n + 1 ] ) ) ;
    }
    pw . print ( min ) ;
  }
  pw . flush ( ) ;
}

public static void main ( String [ ] args ) throws IOException { BufferedReader br = new BufferedReader ( new InputStreamReader ( System . in ) ) ; PrintWriter pw = new PrintWriter ( System . out ) ; int t = 1 ; while ( t -- > 0 ) { int n = Integer . parseInt ( br . readLine ( ) ) ; ArrayList < Node > adj [ ] = new ArrayList [ n + 1 ] ; for ( int i = 0 ; i <= n ; i ++ ) adj [ i ] = new ArrayList < > ( ) ; long sum = 0 ; for ( int i = 0 ; i < n ; i ++ ) { String str [ ] = br . readLine ( ) . trim ( ) . split ( " ▁ " ) ; int x = Integer . parseInt ( str [ 0 ] ) ; int y = Integer . parseInt ( str [ 1 ] ) ; int z = Integer . parseInt ( str [ 2 ] ) ; sum += z ; adj [ x ] . add ( new Node ( y , 0 ) ) ; adj [ y ] . add ( new Node ( x , z ) ) ; } long min = Long . MAX_VALUE ; for ( Node x : adj [ 1 ] ) { cost = 0 ; min = Math . min ( min , sum - dsf ( adj , x , 1 , new boolean [ n + 1 ] ) ) ; } pw . print ( min ) ; } pw . flush ( ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) (throws (type_identifier)) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (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: (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: (decimal_integer_literal))) (while_statement condition: (parenthesized_expression (binary_expression left: (update_expression (identifier)) right: (decimal_integer_literal))) body: (block (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: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) dimensions: (dimensions) value: (array_creation_expression type: (type_identifier) dimensions: (dimensions_expr (binary_expression left: (identifier) right: (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: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (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: (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: (type_identifier) declarator: (variable_declarator name: (identifier) dimensions: (dimensions) value: (method_invocation object: (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list (string_literal))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (decimal_integer_literal)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (decimal_integer_literal)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (decimal_integer_literal)))))) (expression_statement (assignment_expression left: (identifier) right: (identifier))) (expression_statement (method_invocation object: (array_access array: (identifier) index: (identifier)) name: (identifier) arguments: (argument_list (object_creation_expression type: (type_identifier) arguments: (argument_list (identifier) (decimal_integer_literal)))))) (expression_statement (method_invocation object: (array_access array: (identifier) index: (identifier)) name: (identifier) arguments: (argument_list (object_creation_expression type: (type_identifier) arguments: (argument_list (identifier) (identifier)))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (field_access object: (identifier) field: (identifier)))) (enhanced_for_statement type: (type_identifier) name: (identifier) value: (array_access array: (identifier) index: (decimal_integer_literal)) body: (block (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (identifier) right: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier) (decimal_integer_literal) (array_creation_expression type: (boolean_type) dimensions: (dimensions_expr (binary_expression left: (identifier) right: (decimal_integer_literal))))))))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))