#include<bits/stdc++.h>
using namespace std;
int main()
{
int n,point,win[10],low[10];
char str[10];
while(cin>>n&&n!=0){
for(int i=0;i<n;i++){
win[i]=0;low[i]=0;
cin>>str[i];
for(int j=1;j<n;j++){
cin>>point;
if(point==0)win[i]++;
else if(point==1)low[i]++;
}
}
for(int i=0;i<n;i++){
point=0;
for(int j=1;j<n;j++)if(win[point]<win[j]||win[point]==win[j]&&low[point]>low[j])point=j;
cout<<str[point]<<endl;
win[point]=-1;
low[point]=11;
}
}

}