#include <iostream>
#include <cstdio>
#include <cstring>
#include <string>
#include <cmath>
#include <vector>
#include <queue>
#include <map>
#include <set>
#include <stack>
#include <algorithm>
using namespace std;
#define root 1,n,1
#define lson l,mid,rt<<1
#define rson mid+1,r,rt<<1|1
#define lr rt<<1
#define rr rt<<1|1
typedef long long LL;
typedef pair<int,int>pii;
#define X first
#define Y second
const int oo = 1e9+7;
const double PI = acos(-1.0);
const double eps = 1e-6 ;
const int N = 1000010 ;
const int mod = 1007;
int t , n , head , tail ;
int num[N] , nxt[N] , team_last[N] , belong[N];

void Init() {
    memset( nxt , -1 ,sizeof nxt );
    memset( team_last , -1 ,sizeof team_last );
    memset( belong , -1 ,sizeof belong );
    head = tail = -1 ;
}

void Push1( int x ) {
    if( head == -1 ) {
        head = tail = x ;
        nxt[x] = -1 ;
    }
    else {
        nxt[tail] = x ;
        nxt[x] =-1 ;
        tail = x ;
    }
}
void Push2( int x , int last , int team ) {
    nxt[x] = nxt[last];
    nxt[last] = x ;
    team_last[team] = x ;
    if( nxt[x] == -1 ) tail = x ;
}
void Run() {
    Init(); int x ;
    for( int i = 1 ; i <= t ; ++i ) {
        cin >> n ;
        for( int j = 0 ; j < n ; ++j ){
            cin >> x ; belong[x] = i ;
        }
    }
    string s ;
    while( cin >> s ) {
        if( s[0] == ‘S‘ ) break ;
        else if( s[0] == ‘E‘ ) {
            cin >> x ;
            if( belong[x] == -1 ) Push1(x);
            else {
                if( team_last[belong[x]] == -1 ) Push1(x) , team_last[belong[x]] = x ;
                else Push2(x,team_last[belong[x]],belong[x]);
            }
        }
        else {
            cout << head << endl ;
            if( team_last[belong[head]] == head ) team_last[belong[head]] = -1 ;
            head = nxt[head] ;
        }
    }
}
int main()
{
    #ifdef LOCAL
        freopen("in.txt","r",stdin);
    #endif // LOCAL
    ios::sync_with_stdio(false);
    int _  , cas = 1 ; //cin >> _ ;
    while( cin >> t && t ) {
        cout << "Scenario #" << cas++ << endl ;
        Run(); cout << endl ;
    }
}