#include <iostream>
#include <fstream>
using namespace std;
ifstream f("flici.in");
ofstream g("flici.out");
int a[105][105]={0},viz[105]={0},i,j,n,vf,p,st[105],k;
void citire()
{f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
f>>a[i][j];
for(i=1;i<=n;i++)
{for(p=1;p<=n;p++){viz[p]=0;}

viz[i]=1;
vf=1;
st[vf]=i;
g<<i<<' ';
while(vf>0)
{
k=st[vf];
j=1;
while(((a[k][j]==0)||(a[k][j]==1&&viz[j]==1))&&j<=n)j++;
if(j<=n){vf++;st[vf]=j;viz[j]=1;g<<j<<' ';}
else vf=vf-1;
}
g<<endl;

}
}
int main()
{citire();
return 0;
}