题目输入 $\LaTeX$ 炸了。

所以我修了一下 $\LaTeX$。

效果:

输入格式

The first line contains four integers $n$ , $x$ , $y$ , $p$ ( $1<=n<=10^{6},0<=x,y<=10^{18},x+y\gt0,2<=p<=10^{9}$ ) which represent the number of mushrooms, the number of minutes after the first replanting, the number of minutes after the second replanting and the module. The next line contains $n$ integers $a_{i}$ which represent the mushrooms' weight in the non-decreasing order ( $0<=a_{i}<=10^{9}$ ).

Please, do not use %lld specificator to read or write 64-bit integers in C++. It is preffered to use cin (also you may use %I64d).

源码：

## 输入格式

The first line contains four integers $ n $ , $ x $ , $ y $ , $ p $ ( $ 1<=n<=10^{6},0<=x,y<=10^{18},x+y\gt0,2<=p<=10^{9} $ ) which represent the number of mushrooms, the number of minutes after the first replanting, the number of minutes after the second replanting and the module. The next line contains $ n $ integers $ a_{i} $ which represent the mushrooms' weight in the non-decreasing order ( $ 0<=a_{i}<=10^{9} $ ).

Please, do not use %lld specificator to read or write 64-bit integers in C++. It is preffered to use cin (also you may use %I64d).