#include <algorithm>
#include <iostream>
#include <tuple>
#include <vector>
using namespace std;
 
void print(vector<tuple<int, string>> const & data) {
	for(auto row : data) {
		cout << get<string>(row) << " is " << get<int>(row) << " years old.\n";
	}
}
 
int main() {
	int age;
	string name;
	vector<tuple<int, string>> data;
 
	while(cin >> age >> name) data.emplace_back(age, name);
 
	cout << "Unsorted data:\n";
	print(data);
 
	sort(data.begin(), data.end());
	cout << "\nSorted data:\n";
	print(data);
 
	return 0;
}

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

MjUgSm9obgoxMiBTYWxseQoxNSBSb2JlcnQKMjMgQmV0dHkKMjkgRG9uCjE1IEFsYmVydA==

25 John
12 Sally
15 Robert
23 Betty
29 Don
15 Albert