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  1. Prepare
  2. Data Structures
  3. Stacks
  4. Maximum Element

Maximum Element

You have an empty sequence, and you will be given queries. Each query is one of these three types:

1 x  -Push the element x into the stack.
2    -Delete the element present at the top of the stack.
3    -Print the maximum element in the stack.

Function Description

Complete the getMax function in the editor below.

getMax has the following parameters:
- string operations[n]: operations as strings

Returns
- int[]: the answers to each type 3 query

Input Format

The first line of input contains an integer, . The next lines each contain an above mentioned query.

Constraints

Constraints



All queries are valid.

Sample Input

STDIN   Function
-----   --------
10      operations[] size n = 10
1 97    operations = ['1 97', '2', '1 20', ....]
2
1 20
2
1 26
1 20
2
3
1 91
3

Sample Output

26
91