#### 第三题
###### in:
```
20 20 4 0
```
###### out:
```
56477364570
```
by 空kong @ 2023-03-13 15:02:03
@[chuxueyi](/user/947186) 第三题数据
by 空kong @ 2023-03-13 15:02:36
通过啦谢谢:)
by chuxueyi @ 2023-03-14 17:35:50
十年OI一场空,不开longlong见祖宗
by niepandou @ 2023-03-15 16:27:27