string rankTeams(vector<string>& votes) {

//rank matrix

int i,j,n= votes.size(),k= votes[0].size();

vector<vector<int>> rank(26, vector<int>(k,0));

for (i=0;i< n;i++){

for (j=0;j<k;j++){

rank[votes[i][j]-'A'][j]++;

}

}

string res= votes[0];

sort(res.begin(),res.end(),[&rank](char &a, char &b){

int i=0;//index for both the rows of that 2 teams

int n= rank[a-'A'].size();

while (i<n && rank[a-'A'][i]==rank[b-'A'][i]){

i++;//lkeep on going till there is a mismatch of votes

}

if (i==n)

return a<b;//if everything is equal, arrange them alphabetically

return rank[a-'A'][i]>rank[b-'A'][i];

});

return res;

}