solution1.cpp

#include <bits/stdc++.h>
#define sqr(a) (a) * (a)
using namespace std;

int n;
string s[1000000];
int a[1000000];

int main(){
	cin >> n;
	for(int i = 0; i < n; i++){
		cin >> s[i] >> a[i];
	}
	sort(s, s + n);
	sort(a, a + n);
	for(int i = 0; i < n; i++){
		cout << s[i] << ' ' << a[i] << endl;
	}
	return 0;
}