Please subscribe to the official Codeforces channel in Telegram via the link https://t.me/codeforces_official.
×

Package for this problem was not updated by the problem writer or Codeforces administration after we’ve upgraded the judging servers. To adjust the time limit constraint, solution execution time will be multiplied by 2. For example, if your solution works for 400 ms on judging servers, then value 800 ms will be displayed and used to determine the verdict.

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.

×
C. Bombs

time limit per test

2 secondsmemory limit per test

256 megabytesinput

standard inputoutput

standard outputYou've got a robot, its task is destroying bombs on a square plane. Specifically, the square plane contains *n* bombs, the *i*-th bomb is at point with coordinates (*x*_{i}, *y*_{i}). We know that no two bombs are at the same point and that no bomb is at point with coordinates (0, 0). Initially, the robot is at point with coordinates (0, 0). Also, let's mark the robot's current position as (*x*, *y*). In order to destroy all the bombs, the robot can perform three types of operations:

- Operation has format "1 k dir". To perform the operation robot have to move in direction
*dir**k*(*k*≥ 1) times. There are only 4 directions the robot can move in: "R", "L", "U", "D". During one move the robot can move from the current point to one of following points: (*x*+ 1,*y*), (*x*- 1,*y*), (*x*,*y*+ 1), (*x*,*y*- 1) (corresponding to directions). It is forbidden to move from point (*x*,*y*), if at least one point on the path (besides the destination point) contains a bomb. - Operation has format "2". To perform the operation robot have to pick a bomb at point (
*x*,*y*) and put it in a special container. Thus, the robot can carry the bomb from any point to any other point. The operation cannot be performed if point (*x*,*y*) has no bomb. It is forbidden to pick a bomb if the robot already has a bomb in its container. - Operation has format "3". To perform the operation robot have to take a bomb out of the container and destroy it. You are allowed to perform this operation only if the robot is at point (0, 0). It is forbidden to perform the operation if the container has no bomb.

Help the robot and find the shortest possible sequence of operations he can perform to destroy all bombs on the coordinate plane.

Input

The first line contains a single integer *n* (1 ≤ *n* ≤ 10^{5}) — the number of bombs on the coordinate plane. Next *n* lines contain two integers each. The *i*-th line contains numbers (*x*_{i}, *y*_{i}) ( - 10^{9} ≤ *x*_{i}, *y*_{i} ≤ 10^{9}) — the coordinates of the *i*-th bomb. It is guaranteed that no two bombs are located at the same point and no bomb is at point (0, 0).

Output

In a single line print a single integer *k* — the minimum number of operations needed to destroy all bombs. On the next lines print the descriptions of these *k* operations. If there are multiple sequences, you can print any of them. It is guaranteed that there is the solution where *k* ≤ 10^{6}.

Examples

Input

2

1 1

-1 -1

Output

12

1 1 R

1 1 U

2

1 1 L

1 1 D

3

1 1 L

1 1 D

2

1 1 R

1 1 U

3

Input

3

5 0

0 5

1 0

Output

12

1 1 R

2

1 1 L

3

1 5 R

2

1 5 L

3

1 5 U

2

1 5 D

3

Codeforces (c) Copyright 2010-2021 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: Sep/21/2021 01:28:00 (h1).

Desktop version, switch to mobile version.

Supported by

User lists

Name |
---|