#include<cstdio>
#include<queue>
#include<cstring>
using namespace std;
//拓补排序入门水题
int G[105][105];
int in[105];
int ans[105];
queue<int>q;
void toposort(int n)
{
    int tmp,cnt = 0;
    for(int i = 1;i<=n;++i)
        if(!in[i]) q.push(i);
    while(!q.empty()){
        tmp = q.front();
        q.pop();
        ans[++cnt] = tmp;
        for(int i = 1;i<=n;++i)
        {
            if(G[tmp][i]){
                in[i]--;
                if(!in[i]) q.push(i);
            }
        }
    }
}
int main()
{
    int n,m;
    while(~scanf("%d",&n)){
        memset(in,0,sizeof(in));
        memset(G,0,sizeof(G));
        for(int i = 1;i<=n;++i)
        {
            while(scanf("%d",&m),m){
                G[i][m] = 1;
                in[m]++;
            }
        }
         toposort(n);
         for(int i = 1;i<=n;++i)
           printf("%d ",ans[i]);
         printf("\n");
    }
    return 0;
}