#include<bits/stdc++.h>
// #define LOCAL
#define sf scanf
#define pf printf
#define rep(x,y,z) for(int x=y;x<=z;x++)
using namespace std;
typedef long long ll;
const int N=2e3+5;
int n;
int c[N][N];
int a[N],b[N];
int pos=2;
int read(){
    char ch=getchar();
    while(ch!='0'&&ch!='1') ch=getchar();
    return ch-'0';
}
void insert(int x,int y,int z){
    a[x]=y,a[y]=z;
    b[y]=x,b[z]=y;
}
int main(){
    #ifdef LOCAL
    freopen("in.txt","r",stdin);
    freopen("my.out","w",stdout);
    #endif
    while(cin>>n){
        rep(i,1,n) rep(j,1,n) c[i][j]=read();
        a[1]=2,a[2]=1;
        b[1]=2,b[2]=1;
        pos=1;
        rep(i,3,n){
            if(c[pos][i]==c[pos][b[pos]]){
                insert(pos,i,a[pos]);
            }else{
                insert(b[pos],i,pos);
            }
            rep(j,1,i){
                if(c[i][b[i]]!=c[i][a[i]]){
                    pos=i;break;
                }
            }
        }
        rep(i,1,n) {
            pf("%d ",pos);
            pos=a[pos];
        }
        pf("\n");
    }
}