Bobo has a triangle ABC with A(x1,y1),B(x2,y2)A(x1,y1),B(x2,y2) and C(x3,y3)C(x3,y3). Picking a point P uniformly in triangle ABC, he wants to know the expectation value E=max{SPAB,SPBC,SPCA}E=max{SPAB,SPBC,SPCA} where SXYZSXYZ denotes the area of triangle XYZ.

Print the value of 36×E36×E. It can be proved that it is always an integer.

输入描述: 

The input consists of several test cases and is terminated by end-of-file.
Each test case contains six integers x1,y1,x2,y2,x3,y3x1,y1,x2,y2,x3,y3.
* |x1|,|y1|,|x2|,|y2|,|x3|,|y3|≤108|x1|,|y1|,|x2|,|y2|,|x3|,|y3|≤108 * There are at most 105105 test cases.

输出描述: 

For each test case, print an integer which denotes the result.

这题期望值为三角形面积的22/36，可以自己建模打随机数求（好吧太菜了只会这个）；
至于正常的推导过程如下图：



然后就可以贴代码了（别忘了答案是期望的36倍哦）： 

	#include<bits/stdc++.h>





	using namespace std;





	int n,m,k,t;





	long long a[10];





	intmain(){





	    while(~scanf("%lld%lld%lld%lld%lld%lld",&a[1],&a[2],&a[3],&a[4],&a[5],&a[6])){





	        long long s=abs((a[1]*a[4]-a[3]*a[2])+(a[3]*a[6]-a[5]*a[4])+(a[5]*a[2]-a[1]*a[6]));





	        printf("%lld\n",s*11);





	    }





	}