CF 965 B. Battleship

Arkady is playing Battleship. The rules of this game aren't really important.There is a field of $\mathrm{n\times n}$

cells. There should be exactly one $\mathrm{k-decker\; on\; the\; field,\; i. e.\; a\; ship\; that\; is\; k}$cells long oriented either horizontally or vertically. However,

Arkady doesn't know where it is located. For each cell Arkady knows if it is definitely empty or can contain a part of the ship.

Consider all possible locations of the ship. Find such a cell that belongs to the maximum possible number of different locations of the ship.

Input

The first line contains two integers $n$$\mathrm{and\; k\; (1\le k\le n\le 100}$) — the size of the field and the size of the ship.

The next $\mathrm{n\; lines\; contain\; the\; filed.Each\; line\; cotains\; n}$characters, each of which is either '#' (denotes a definitely empty cell) or '.' (denotes a cell that can belong to the ship).

Output

Output two integers — the row and the column of a cell that belongs to the maximum possible number of different locations of the ship.

If there are multiple answers, output any of them. In particular, if no ship can be placed on the field, you can output any cell.

Examples

Input

4 3
#..#
#.#.
....
.###

Output

3 2

Input

10 4
#....##...
.#...#....
..#..#..#.
...#.#....
.#..##.#..
.....#...#
...#.##...
.#...#.#..
.....#..#.
...#.#...#

Output

6 1

Input

19 6
##..............###
#......#####.....##
.....#########.....
....###########....
...#############...
..###############..
.#################.
.#################.
.#################.
.#################.
#####....##....####
####............###
####............###
#####...####...####
.#####..####..#####
...###........###..
....###########....
.........##........
#.................#

Output

1 8

Note

The picture below shows the three possible locations of the ship that contain the cell $(3,2)$

in the first sample.

讀了好幾遍終於看懂了題目意思，"#"代表空單元，"."代表船部件，並且水平或者豎直的連起來的k個可能構成一個完整的部件，問有沒有一個單元可以和其他單元組合構成盡可能多的部件，暴力一下。

#include <iostream>
#include <algorithm>
#include <cstring>
#include <cstdio>
#include <vector>
#include <queue>
#include <stack>
#include <cstdlib>
#include <iomanip>
#include <cmath>
#include <cassert>
#include <ctime>
#include <map>
#include <set>
using namespace std;
#pragma comment(linker, "/stck:1024000000,1024000000")
#define lowbit(x) (x&(-x))
#define max(x,y) (x>=y?x:y)
#define min(x,y) (x<=y?x:y)
#define MAX 100000000000000000
#define MOD 1000000007
#define pi acos(-1.0)
#define ei exp(1)
#define PI 3.1415926535897932384626433832
#define ios() ios::sync_with_stdio(true)
#define INF 0x3f3f3f3f
#define mem(a) ((a,0,sizeof(a)))
typedef long long ll;
char a[106][106];
int vis[106][106];
int n,k;
int main()
{
    scanf("%d%d",&n,&k);
    for(int i=0;i<n;i++)
        scanf("%s",&a[i]);
    int col=0,row=0,cnt=0,tot=0;
    memset(vis,0,sizeof(vis));
    for(int i=0;i<n;i++)
    {
        for(int j=0;j<n;j++)
        {
            if(a[i][j]=='.')
            {
                cnt=0;
                for(int z=j;z<min(n,j+k);z++)
                    if(a[i][z]=='.') cnt++;
                if(cnt==k){
                    for(int z=j;z<min(n,j+k);z++)
                        vis[i][z]++;
                }
                cnt=0;
                for(int z=i;z<min(n,i+k);z++)
                    if(a[z][j]=='.') cnt++;
                if(cnt==k){
                    for(int z=i;z<min(n,i+k);z++)
                        vis[z][j]++;
                }
            }
            if(vis[i][j]>tot)
            {
                tot=vis[i][j];
                row=i;
                col=j;
            }
        }
    }
    printf("%d %d\n",row+1,col+1);
    return 0;
}