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#include <string>
#include <vector>
#include <algorithm>
#include <iostream>
using namespace std;
int val;
bool comp(string a,string b){
    if(a[val]==b[val])
       return a<b;
    return a[val]<b[val];
}
vector<string> solution(vector<string> strings, int n) {
    vector<string> answer;
    val=n;
  
    sort(strings.begin(),strings.end(),comp);
    
    for(int i=0;i<strings.size();i++)
        cout << strings[i] << ' ';
    return strings;
}