Virtual contest is a way to take part in past contest, as close as possible to participation on time. It is supported only ICPC mode for virtual contests.
If you've seen these problems, a virtual contest is not for you - solve these problems in the archive.
If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive.
Never use someone else's code, read the tutorials or communicate with other person during a virtual contest.

No tag edit access

The problem statement has recently been changed. View the changes.

×
E1. Reading Books (easy version)

time limit per test

2 secondsmemory limit per test

256 megabytesinput

standard inputoutput

standard outputEasy and hard versions are actually different problems, so read statements of both problems completely and carefully.

Summer vacation has started so Alice and Bob want to play and joy, but... Their mom doesn't think so. She says that they have to read some amount of books before all entertainments. Alice and Bob will read each book together to end this exercise faster.

There are $$$n$$$ books in the family library. The $$$i$$$-th book is described by three integers: $$$t_i$$$ — the amount of time Alice and Bob need to spend to read it, $$$a_i$$$ (equals $$$1$$$ if Alice likes the $$$i$$$-th book and $$$0$$$ if not), and $$$b_i$$$ (equals $$$1$$$ if Bob likes the $$$i$$$-th book and $$$0$$$ if not).

So they need to choose some books from the given $$$n$$$ books in such a way that:

- Alice likes at least $$$k$$$ books from the chosen set and Bob likes at least $$$k$$$ books from the chosen set;
- the total reading time of these books is minimized (they are children and want to play and joy as soon a possible).

The set they choose is the same for both Alice an Bob (it's shared between them) and they read all books together, so the total reading time is the sum of $$$t_i$$$ over all books that are in the chosen set.

Your task is to help them and find any suitable set of books or determine that it is impossible to find such a set.

Input

The first line of the input contains two integers $$$n$$$ and $$$k$$$ ($$$1 \le k \le n \le 2 \cdot 10^5$$$).

The next $$$n$$$ lines contain descriptions of books, one description per line: the $$$i$$$-th line contains three integers $$$t_i$$$, $$$a_i$$$ and $$$b_i$$$ ($$$1 \le t_i \le 10^4$$$, $$$0 \le a_i, b_i \le 1$$$), where:

- $$$t_i$$$ — the amount of time required for reading the $$$i$$$-th book;
- $$$a_i$$$ equals $$$1$$$ if Alice likes the $$$i$$$-th book and $$$0$$$ otherwise;
- $$$b_i$$$ equals $$$1$$$ if Bob likes the $$$i$$$-th book and $$$0$$$ otherwise.

Output

If there is no solution, print only one integer -1. Otherwise print one integer $$$T$$$ — the minimum total reading time of the suitable set of books.

Examples

Input

8 4

7 1 1

2 1 1

4 0 1

8 1 1

1 0 1

1 1 1

1 0 1

3 0 0

Output

18

Input

5 2

6 0 0

9 0 0

1 0 1

2 1 1

5 1 0

Output

8

Input

5 3

3 0 0

2 1 0

3 1 0

5 0 1

3 0 1

Output

-1

Codeforces (c) Copyright 2010-2021 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: Jun/25/2021 07:27:48 (g2).

Desktop version, switch to mobile version.

Supported by

User lists

Name |
---|