public static void main ( String [ ] args ) {
  Scanner s = new Scanner ( System . in ) ;
  long desiredClones = s . nextLong ( ) ;
  long desiredOriginals = s . nextLong ( ) ;
  long startingClones = desiredOriginals - 1 ;
  long neededClones = desiredClones - startingClones ;
  if ( neededClones != 0 ) {
    if ( neededClones > 0 && neededClones % 2 == 0 && startingClones >= 1 ) {
      System . out . println ( "Yes" ) ;
    }
    else {
      System . out . println ( "No" ) ;
    }
  }
  else {
    if ( desiredOriginals >= 1 ) {
      System . out . println ( "Yes" ) ;
    }
    else {
      System . out . println ( "No" ) ;
    }
  }
}

public static void main ( String [ ] args ) { Scanner s = new Scanner ( System . in ) ; long desiredClones = s . nextLong ( ) ; long desiredOriginals = s . nextLong ( ) ; long startingClones = desiredOriginals - 1 ; long neededClones = desiredClones - startingClones ; if ( neededClones != 0 ) { if ( neededClones > 0 && neededClones % 2 == 0 && startingClones >= 1 ) { System . out . println ( " Yes " ) ; } else { System . out . println ( " No " ) ; } } else { if ( desiredOriginals >= 1 ) { System . out . println ( " Yes " ) ; } else { System . out . println ( " 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: (integral_type) 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: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (identifier)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))) alternative: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))))) alternative: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))) alternative: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))))))))