#include <iostream>
#include <string>
using namespace std;
int n=2;
string name[50],num[50];
    void input_data();
    void search(string);
int main()
{
   
    string find_name;
    cout<<"please input the number of class:"<<endl;
    cin>>n;
  
    input_data();
    cout<<"please input name you  want:";
    cin>>find_name;
    search(find_name);
    return 0;
}

void   input_data()
{
    int i;
    for(i=0;i<n;i++)
    {
        cout<<"please input name and number of student"<<i+1<<": ";
        cin>>name[i]>>num[i];
    }
   
}
void search(string x)
{
    int i;
    bool flag=false;
    for(i=0;i<n;i++)
    {
        if(name[i]==x)
        {   cout<<name[i]<<"  has been found,his number is:"<<num[i]<<endl;
        flag=true;
        break;}
    }
    if(flag==false)
        cout<<"can not find name"<<endl;
}