1 /*************************************************************************
 2     > File Name: code/multi/#5/1007.cpp
 3     > Author: 111qqz
 4     > Email: rkz2013@126.com 
 5     > Created Time: 2015年08月04日 星期二 12时39分42秒
 6  ************************************************************************/
 7 
 8 #include<iostream>
 9 #include<iomanip>
10 #include<cstdio>
11 #include<algorithm>
12 #include<cmath>
13 #include<cstring>
14 #include<string>
15 #include<map>
16 #include<set>
17 #include<queue>
18 #include<vector>
19 #include<stack>
20 #define y0 abc111qqz
21 #define y1 hust111qqz
22 #define yn hez111qqz
23 #define j1 cute111qqz
24 #define tm crazy111qqz
25 #define lr dying111qqz
26 using namespace std;
27 #define REP(i, n) for (int i=0;i<int(n);++i)  
28 typedef long long LL;
29 typedef unsigned long long ULL;
30 const int inf = 0x7fffffff;
31 const int N=1E6+7;
32 multiset<int>se;
33 multiset<int>::iterator it;
34 int main()
35 {
36     int n;
37     int cmd;
38     int x;
39     scanf("%d",&n);
40     for ( int i = 0 ; i < n;  i++)
41     {
42     scanf("%d",&cmd);
43     if (cmd==1)
44     {
45         scanf("%d",&x);
46         se.insert(x);
47     }
48     if (cmd==2&&!se.empty())
49     {
50         se.erase(se.begin());
51     }
52     if (cmd==3)
53     {
54         if (se.empty())
55         {
56         printf("0\n");
57         }
58         else
59         {
60         it = se.end();
61         it--;
62         printf("%d\n",*it);
63         }
64     }
65     }
66     return 0;
67 }