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.

×
F. Simba on the Circle

time limit per test

1 secondmemory limit per test

256 megabytesinput

standard inputoutput

standard outputYou are given a circular array with *n* elements. The elements are numbered from some element with values from 1 to *n* in clockwise order. The *i*-th cell contains the value *a*_{i}. The robot Simba is in cell *s*.

Each moment of time the robot is in some of the *n* cells (at the begin he is in *s*). In one turn the robot can write out the number written in current cell or move to the adjacent cell in clockwise or counterclockwise direction. To write out the number from the cell Simba doesn't spend any time, but to move to adjacent cell Simba spends one unit of time.

Simba wants to write the number from each cell one time, so the numbers will be written in a non decreasing order. Find the least number of time units to write out all numbers.

Input

The first line contains two integers *n* and *s* (1 ≤ *s* ≤ *n* ≤ 2000) — the number of cells in the circular array and the starting position of Simba.

The second line contains *n* integers *a*_{i} ( - 10^{9} ≤ *a*_{i} ≤ 10^{9}) — the number written in the *i*-th cell. The numbers are given for cells in order from 1 to *n*. Some of numbers *a*_{i} can be equal.

Output

In the first line print the number *t* — the least number of time units.

Each of the next *n* lines should contain the direction of robot movement and the number of cells to move in that direction. After that movement the robot writes out the number from the cell in which it turns out. The direction and the number of cells should be printed in the form of +x in case of clockwise movement and -x in case of counterclockwise movement to *x* cells (0 ≤ *x* ≤ *n* - 1).

Note that the sum of absolute values of *x* should be equal to *t*.

Examples

Input

9 1

0 1 2 2 2 1 0 1 1

Output

12

+0

-3

-1

+2

+1

+2

+1

+1

+1

Input

8 1

0 1 0 1 0 1 0 1

Output

13

+0

+2

+2

+2

-1

+2

+2

+2

Input

8 1

1 2 3 4 5 6 7 8

Output

7

+0

+1

+1

+1

+1

+1

+1

+1

Input

8 1

0 0 0 0 0 0 0 0

Output

7

+0

+1

+1

+1

+1

+1

+1

+1

Codeforces (c) Copyright 2010-2022 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: May/24/2022 11:34:10 (f1).

Desktop version, switch to mobile version.

Supported by

User lists

Name |
---|