Consider a table of size n × m, initially fully white. Rows are numbered 1 through n from top to bottom, columns 1 through m from left to right. Some square inside the table with odd side length was painted black. Find the center of this square.

Input

The first line contains two integers n and m (1 ≤ n, m ≤ 115) — the number of rows and the number of columns in the table.

The i-th of the next n lines contains a string of m characters s_{i1} s_{i2} … s_{im} (s_{ij} is 'W' for white cells and 'B' for black cells), describing the i-th row of the table.

Output

Output two integers r and c (1 ≤ r ≤ n, 1 ≤ c ≤ m) separated by a space — the row and column numbers of the center of the black square.

Examples

Input

5 6
WWBBBW
WWBBBW
WWBBBW
WWWWWW
WWWWWW


Output

2 4


Input

3 3
WWW
BWW
WWW


Output

2 1
#import sys
#import math
#sys.stdout=open("C:/Users/pipal/OneDrive/Desktop/VS code/python/output.txt","w")
#sys.stdin=open("C:/Users/pipal/OneDrive/Desktop/VS code/python/input.txt","r")
#t=int(input())
#or i in range(t): 
n,m=map(int,input().split())
mat=[]
for i in range(n):
   #l=list(map(int,input().split()))
   s=input()
   mat.append(s)
row=[]
col=[]
for i in range(n):
   for j in range (len(mat[0])):
      if mat[i][j]=="B":
         row.append(i)
         col.append(j)

x=(row[0]+row[len(row)-1])//2+1
y=(col[0]+col[len(col)-1])//2+1
print(x,y)
