1 #include<iostream>
2 #include<cmath>
3 #include<cstdio>
4 #include<sstream>
5 #include<cstdlib>
6 #include<string>
7 #include<string.h>
8 #include<cstring>
9 #include<algorithm>
10 #include<vector>
11 #include<map>
12 #include<set>
13 #include<stack>
14 #include<list>
15 #include<queue>
16 #include<ctime>
17 #include<bitset>
18 #include<cmath>
19 #define eps 1e-6
20 #define INF 0x3f3f3f3f
21 #define PI acos(-1.0)
22 #define ll __int64
23 #define LL long long
24 #define lson l,m,(rt<<1)
25 #define rson m+1,r,(rt<<1)|1
26 #define M 1000000007
27 using namespace std;
28
29
30
31 int main()
32 {
33 //freopen("in.txt","r",stdin);
34 //freopen("out.txt","w",stdout);
35
36
37
38 return 0;
39 }
