input:"This is a GBK base64 encoded word: =?GBK?B?572R57uc5Y6o5biI?=\nThis is a Cyrillic quoted word: =?utf-8?Q?=D0=A2=D0=B5=D1=81=D1=82_=D0=A2=D0=B5=D1=81=D1=82_=D0=A2=D0=B5=D1=81=D1=82?=.",
expectedOutput:"This is a GBK base64 encoded word: 网络厨师.\nThis is a Cyrillic quoted word: Кибер Шеф.",