#include <vector>

#include <map>

#include <string>

#include <iostream>

using namespace std;

int main(void)

{

    vector<int> vec;

    vec.push_back(3);

    vec.push_back(6);

    vec.push_back(8);

    vec.push_back(4);

    for (int i=0;i<vec.size();++i) cout<<vec[i]<<endl;

    map<string, string> m;

  pair<string,string>p1("S","Shang Hai");

  pair<string,string>p2("B","Bei Jing");

  pair<string,string>p3("G","Guang Zhou");

  m.insert(p3);m.insert(p2);m.insert(p1);  

  map<string,string>::iterator itor=m.begin();

  for (;itor!=m.end();++itor){

  cout<<itor->first<<endl;

  cout<<itor->second<<endl;

 }  

    return 0;

}