public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  String [ ] s = new String [ 2 ] ;
  s [ 0 ] = sc . next ( ) ;
  s [ 1 ] = sc . next ( ) ;
  char [ ] c = new char [ ] {
    'A' , 'B' , 'C' , 'D' , 'E' , 'F' , 'G' , 'H' , 'I' , 'J' , 'K' , 'L' , 'M' , 'N' , 'O' , 'P' , 'Q' , 'R' , 'S' , 'T' , 'U' , 'V' , 'W' , 'X' , 'Y' , 'Z' };
    for ( int j = 0 ;
    j < 2 ;
    j ++ ) {
      int cidx = 0 ;
      for ( int i = 0 ;
      i < s [ j ] . length ( ) ;
      i ++ ) {
        char sca = s [ j ] . charAt ( i ) ;
        if ( Character . isLowerCase ( sca ) ) {
          s [ j ] = s [ j ] . replace ( sca , c [ cidx ++ ] ) ;
        }
      }
    }
    System . out . println ( s [ 0 ] . equals ( s [ 1 ] ) ? "Yes" : "No" ) ;
  }
  
public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; String [ ] s = new String [ 2 ] ; s [ 0 ] = sc . next ( ) ; s [ 1 ] = sc . next ( ) ; char [ ] c = new char [ ] { ' A ' , ' B ' , ' C ' , ' D ' , ' E ' , ' F ' , ' G ' , ' H ' , ' I ' , ' J ' , ' K ' , ' L ' , ' M ' , ' N ' , ' O ' , ' P ' , ' Q ' , ' R ' , ' S ' , ' T ' , ' U ' , ' V ' , ' W ' , ' X ' , ' Y ' , ' Z ' } ; for ( int j = 0 ; j < 2 ; j ++ ) { int cidx = 0 ; for ( int i = 0 ; i < s [ j ] . length ( ) ; i ++ ) { char sca = s [ j ] . charAt ( i ) ; if ( Character . isLowerCase ( sca ) ) { s [ j ] = s [ j ] . replace ( sca , c [ cidx ++ ] ) ; } } } System . out . println ( s [ 0 ] . equals ( s [ 1 ] ) ? " Yes " : " No " ) ; }
(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: (array_type element: (type_identifier) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (type_identifier) dimensions: (dimensions_expr (decimal_integer_literal))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions) value: (array_initializer (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_literal) (character_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: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (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: (array_access array: (identifier) index: (identifier)) name: (identifier) arguments: (argument_list))) update: (update_expression (identifier)) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (array_access array: (identifier) index: (identifier)) name: (identifier) arguments: (argument_list (identifier))))) (if_statement condition: (parenthesized_expression (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) consequence: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation object: (array_access array: (identifier) index: (identifier)) name: (identifier) arguments: (argument_list (identifier) (array_access array: (identifier) index: (update_expression (identifier))))))))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (ternary_expression condition: (method_invocation object: (array_access array: (identifier) index: (decimal_integer_literal)) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (decimal_integer_literal)))) consequence: (string_literal) alternative: (string_literal)))))))