#include <cstdio>
#include <cstring>
#include <algorithm>
#include <queue>
#include <set>
#include <map>
using namespace std;

int n,start,dest;

map<int,vector<int>> mp;
set<int> st;

bool dfs(int start,int end){
    if(start==end) return true;
    for(int i=0;i<mp[start].size();i++){
        int v = mp[start][i];
        if(st.count(v)==0){  //v还没有访问过
            st.insert(v);
            if(dfs(v,end)) return true;
        }
    }
    return false;
}

int main(){
    int t = 0;
    while(scanf("%d",&n)){
        if(n==0) break;   //维度
        printf("Maze #%d ",++t);
        mp.clear();
        st.clear();
        int tmp = 0;
        start = dest = 0;
        for(int i=0;i<n;i++){  //起点
            scanf("%d",&tmp);
            start = start*10+tmp;
        }
        for(int i=0;i<n;i++){  //终点
            scanf("%d",&tmp);
            dest = dest*10+tmp;
        }
        int from,to;
        while(scanf("%d",&tmp)){
            from = to = 0;
            if(tmp==-1) break;
            from = tmp;
            for(int i=1;i<n;i++){
                scanf("%d",&tmp);
                from = from*10+tmp;
            }
            for(int i=0;i<n;i++){
                scanf("%d",&tmp);
                to = to*10+tmp;
            }
            mp[from].push_back(to);
            mp[to].push_back(from);
        }
        if(dfs(start,dest))
            printf("can be travelled\n");
        else
            printf("cannot be travelled\n");
    }
    return 0;
}