#include <iostream>
#include <vector>
#include <map>
 
int main() {
    using data_t = std::pair<int, std::string>;
    const std::vector<data_t> v { 
        { 2, "hello" },
        { 3, "every" },
        { 1, "body" }
    };
    for (auto p: v) 
        std::cout << p.first << ' ' << p.second << std::endl;
    
    std::cout << std::endl;
        
    const std::map<int, std::string> m { 
        { 2, "hello" },
        { 3, "every" },
        { 1, "body" }
    };
    for (auto p: m) 
        std::cout << p.first << ' ' << p.second << std::endl;
}