Xiao Ming and Xiao Bao are playing a simple Numbers game. In a round Xiao Ming can choose to write down a number, or ask Xiao Bao what the kth great number is. Because the number written by Xiao Ming is too much, Xiao Bao is feeling giddy. Now, try to help Xiao Bao.

Input

There are several test cases. For each test case, the first line of input contains two positive integer n, k. Then n lines follow. If Xiao Ming choose to write down a number, there will be an " I" followed by a number that Xiao Ming will write down. If Xiao Ming choose to ask Xiao Bao, there will be a "Q", then you need to output the kth great number. 

Output

The output consists of one integer representing the largest number of islands that all lie on one line. 

Sample Input

8 3I 1I 2I 3QI 5QI 4Q

Sample Output

123

Hint

Xiao  Ming  won't  ask  Xiao  Bao  the  kth  great  number  when  the  number  of  the  written number is smaller than k. (1=
    
     <=n<=1000000).
    

I加入一个数

Q询问第k大的数值

这道题用优先队列做

队列升序

用队首保存第k大的数,第k大数也是k个有序数了最小的数

每次压入后,如果队列元素大于k,就弹出最小的呢个数

ac:

#include
    
     #include
     
      #include
      
       #include
       
        using namespace std;int main(){    char ctr[2];    int n,m,d;    while(scanf("%d%d",&n,&m)!=EOF)    {        priority_queue
        
         
          ,greater
          
           > que; for(int i=0;i
           
            m) que.pop(); } else{ printf("%d\n",que.top()); } } } return 0;}