Min Heap

Implement the Min Heap data structure. For information about Heap click here.

You will be given 2 types of queries:-

0 X
Insert X in the heap.

1
Print the minimum element from the heap and remove it.

Input Format :

The first line will contain the integer 'T', denoting the number of test cases.

For each test case, the first line will contain a single integer 'N', the number of queries.
Then each of the next ‘N’ lines contains two types of query either 0 ‘X’ or 1.

Output format :

For each test case, output the query of type 1 on new line..

Note :

You don't need to print anything. It has already been taken care of. Just implement the given function.

Constraints :

1 <= T <= 5
1 <= N <= 10^5
1 <= X <= 50

Time Limit: 1 sec

Sample Input 1 :

2
3
0 2
0 1
1
2
0 1
1

Sample Output 1 :

1
1

Explanation Of Sample Input 1 :

For the first test case:-
Insert 2 in the heap and currently, 2 is the smallest element in the heap.
Insert 1 in the heap and now the smallest element is 1.
Return and remove the smallest element which is 1.

For the second test case:-
Insert 1 in the heap and currently, 1 is the smallest element in the heap.
Return the smallest element from the heap which is 1 and remove it.

Sample Input 2 :

2
5
0 5
1
0 43
0 15
0 5
2
0 4
1

Sample Output 2 :

5
4