Problem: For a set $S$ of integers, perform a sequence of the following operations. Note that multiple elements can have equivalent values in $S$.

* insert($x$): Insert $x$ to $S$ and report the number of elements in $S$ after the operation.
* find($x$): Report the number of $x$ in $S$.
* delete($x$): Delete all $x$ from $S$.
* dump($L$, $R$): Print elements $x$ in $S$ such that $L \leq x \leq R$.

Constraints

* $1 \leq q \leq 200,000$
* $0 \leq x \leq 1,000,000,000$
* The total number of elements printed by dump operations does not exceed $1,000,000$
* The sum of numbers printed by find operations does not exceed $2,000,000$

Input

The input is given in the following format.


$q$
$query_1$
$query_2$
:
$query_q$


Each query $query_i$ is given by


0 $x$


or


1 $x$


or


2 $x$


or


3 $L$ $R$


where the first digits 0, 1, 2 and 3 represent insert, find, delete and dump operations respectively.

Output

For each insert operation, print the number of elements in $S$.
For each find operation, print the number of specified elements in $S$.
For each dump operation, print the corresponding elements in ascending order. Print an element in a line.

Example

Input

10
0 1
0 1
0 2
0 3
2 2
1 1
1 2
1 3
0 4
3 1 4


Output

1
2
3
4
2
0
1
4
1
1
3
4

Solution (in CPP):

Solution:
#include<cstdio>
#include<set>
#include<algorithm>

using namespace std;

int main(){
    int num_query,command,val,val2;
    scanf("%d",&num_query);
    multiset<int> int_set;
    multiset<int>::iterator itr;
    
    for(int i = 0;i < num_query;i++){
        scanf("%d %d",&command,&val);
        if(command == 0){
            int_set.insert(val);
            printf("%d\n",(int)int_set.size());
        }else if(command == 1){
            int counter = int_set.count(val);
            printf("%d\n",counter);
        }else if(command == 2){
            int_set.erase(val);
        }else if(command == 3){
            scanf("%d",&val2);
            itr = int_set.lower_bound(val);
            while(int_set.end() != itr && *itr <= val2){
                printf("%d\n",*itr);
                itr++;
            }
        }
    }
    
    return 0;
}