#include<iostream>
using namespace std;
class stud{
public:
 void setinformation(long x,char y);
 void showinformation();
private:
 long studnum;
 char studsex;
};
void stud::setinformation(long x,char y){
    studnum=x;
 studsex=y;
}
void stud::showinformation (){
 if(studnum=='g')
    cout<<"mike is a girl and her studnum is:"<<studnum<<endl;
 if(studnum=='b')
  cout<<"mike is a boy and his studnum is:"<<studnum<<endl;
}
int main(){
 stud mike;
 long num;
 char sex;
 cout<<"input num:"<<endl;
 cin>>num;
 cout<<"input sex:"<<endl;
 cin>>sex;
 mike.setinformation(num,sex);
 mike.showinformation();
 return 0;
}