H,W=gets.split.map(&:to_i)
N = gets.to_i
ops = []
BIG=100000
STDIN.read.split("\n").map{|line|
    s,k=line.split
    k = k.to_i
    if s=='R'
        ops << k 
    else
        ops << k + BIG
    end
#    ops << [s, k]
}
# ops.reverse!
x=0
y=0
count = 0
ops.reverse_each{|op|
    if op < BIG && op == y
        count +=1
        x = (x+W-1)%W
        if x==W-1 && W%2==1
            count +=1
        end
    elsif op >= BIG && op - BIG == x
        count += 1
        y = (y+H-1)%H
        if y==H-1 && H%2==1
            count +=1
        end
    end
}
if count%2==0
    puts 'white'
else
    puts 'black'
end