/*
 * Copyright (c) 2023 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
print(NaN == NaN);
print(NaN === NaN);
print(NaN != NaN);
print(NaN !== NaN);
print(Number.NaN == Number.NaN);
print(Number.NaN === Number.NaN);
print(Number.NaN != Number.NaN);
print(Number.NaN !== Number.NaN);