#include <bits/stdc++.h>
#define z exit(0)
using namespace std;
const int N = 1005;
vector<int> g[N];
int a[N], dp[256][8], V[N];
pair<int,int> up[256][8];
signed main(){
    int n; scanf("%d", &n);
    for(int i = 1; i<n; ++i){
        for(int j = 0; j<i; ++j) scanf("%d", a+j);
        int sz = i/2 + (i&1);
        for(int j = 0; j<sz; ++j){
            int u = i, v = a[j];
            g[u].push_back(v); g[v].push_back(u);
        }
    }
    for(int i = 0; i<n; ++i) printf("%d ", i);
}