public static void main ( String [ ] args ) {
  Scanner scanner = new Scanner ( System . in ) ;
  String str = scanner . nextLine ( ) . toLowerCase ( ) ;
  char [ ] charArr = str . toCharArray ( ) ;
  List < Character > tempArr = new ArrayList < > ( ) ;
  for ( int i = 0 ;
  i < charArr . length ;
  i ++ ) {
    char current = charArr [ i ] ;
    if ( current != 'a' && current != 'e' && current != 'i' && current != 'o' && current != 'u' && current != 'y' ) {
      tempArr . add ( '.' ) ;
      tempArr . add ( current ) ;
    }
  }
  for ( int i = 0 ;
  i < tempArr . size ( ) ;
  i ++ ) {
    System . out . print ( tempArr . get ( i ) ) ;
  }
}

public static void main ( String [ ] args ) { Scanner scanner = new Scanner ( System . in ) ; String str = scanner . nextLine ( ) . toLowerCase ( ) ; char [ ] charArr = str . toCharArray ( ) ; List < Character > tempArr = new ArrayList < > ( ) ; for ( int i = 0 ; i < charArr . length ; i ++ ) { char current = charArr [ i ] ; if ( current != ' a ' && current != ' e ' && current != ' i ' && current != ' o ' && current != ' u ' && current != ' y ' ) { tempArr . add ( ' . ' ) ; tempArr . add ( current ) ; } } for ( int i = 0 ; i < tempArr . size ( ) ; i ++ ) { System . out . print ( tempArr . get ( i ) ) ; } }
(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: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (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) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) arguments: (argument_list)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (field_access object: (identifier) field: (identifier))) update: (update_expression (identifier)) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (array_access array: (identifier) index: (identifier)))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (character_literal)) right: (binary_expression left: (identifier) right: (character_literal))) right: (binary_expression left: (identifier) right: (character_literal))) right: (binary_expression left: (identifier) right: (character_literal))) right: (binary_expression left: (identifier) right: (character_literal))) right: (binary_expression left: (identifier) right: (character_literal)))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (character_literal)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (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: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) update: (update_expression (identifier)) body: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))))))