yinyanghu

#include <vector>
#include <cstring>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>

yinyanghu

#include <iostream>
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <ctime>

using namespace std;

typedef struct node
{

yinyanghu

#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <cstring>

yinyanghu

#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>

yinyanghu

#include <iostream>
#include <cstring>
#include <algorithm>

#define		N	5
#define		NN	25
#define		limit	30
#define		maxqueue 10000000

using namespace std;