#include <iostream>
using namespace std;
int mai...
#include <iostream>
using namespace std;
int mai...
//
#include <iostream>
using namespace std;
int...
#include <iostream>
#include <string>
using...
#include <iostream>
#include <cstring>
usin...
#include <iostream>
using namespace std;
int mai...
#include <iostream>
#include <ctime>
using ...
#include <iostream>
using namespace std;
double ...
#include <iostream>
using namespace std;
int mai...
#include <iostream>
using namespace std;
int mai...