public static void main ( String [ ] args ) throws IOException {
  BufferedReader r = new BufferedReader ( new InputStreamReader ( System . in ) , 1 ) ;
  String s = r . readLine ( ) ;
  String [ ] sl = s . split ( "[\\s]+" ) ;
  String a = sl [ 0 ] ;
  String b = sl [ 1 ] ;
  System . out . println ( a . toLowerCase ( ) . equals ( b ) ? "Yes" : "No" ) ;
}

public static void main ( String [ ] args ) throws IOException { BufferedReader r = new BufferedReader ( new InputStreamReader ( System . in ) , 1 ) ; String s = r . readLine ( ) ; String [ ] sl = s . split ( " [ \\ s ] + " ) ; String a = sl [ 0 ] ; String b = sl [ 1 ] ; System . out . println ( a . toLowerCase ( ) . equals ( b ) ? " 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))) (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)))) (decimal_integer_literal))))) (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: (array_type element: (type_identifier) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (string_literal))))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (array_access array: (identifier) index: (decimal_integer_literal)))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (array_access array: (identifier) index: (decimal_integer_literal)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (ternary_expression condition: (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list (identifier))) consequence: (string_literal) alternative: (string_literal)))))))