#include <iostream>
#include <vector>

void f(int);
void f(double);
void f(int, std::vector<char>&);

void f(int value) {
    std::cout << "int=" << value << std::endl;
}

void g() {
    f(3);
    f(4.5);
}

void f(double value) {
    std::cout << "double=" << value << std::endl;
}

void f(int value, std::vector<char>& symbols) {
}

int z = 123;

namespace alexbogo {
    int z = 567;
    int f() {
        return 123;
    }
    void qwerty() {

    }

};
namespace badns {
    int z = 76655;
    int f() {
        return 23424234;
    }
    void qwerty() {

    }

};

void qwerty() {

}


int main() {
    alexbogo::qwerty();
    badns::qwerty();
    qwerty();
    int z = 4;

    /*for (int i = 0; i < 10; ++i) {
        std::cout << z << std::endl;
        int z = 5;
        std::cout << z << std::endl;
    }*/

    {
        int z = 10;
        std::cout << z << std::endl;
        {
            int z = 11;
            std::cout << z << std::endl;
            std::cout << ::z << std::endl;
            {
                std::cout << z << std::endl;
                {
                    std::cout << z << std::endl;
                }
            }
        }
    }


}