#include <iostream>
#include <map>
using namespace std;

int main() {

    map<string, int> oceni;

    oceni["Josif"] = 3;
    oceni["Kiril"] = 4;
    oceni["Petar"] = 5;

    oceni.insert({"Pero", 1});
    oceni.insert({"Riste", 2});
    oceni["Vasil"] = 2;


    oceni.erase("Kiril");
    oceni.erase(oceni.begin());

    for(map<string, int>::iterator it = oceni.begin(); it != oceni.end(); it++) {
        cout << it->first << " " << it->second << endl;
    }
    return 0;
}