H,W=gets.split.map(&:to_i)
N = gets.to_i
ops = []
N.times{
    s,k=gets.split
    k = k.to_i
    ops << [s, k]
}
# ops.reverse!
x=0
y=0
count = 0
ops.reverse_each{|op|
    if op[0] == 'R' && op[1] == y
        count +=1
        x = (x+W-1)%W
        if x==W-1 && W%2==1
            count +=1
        end
    elsif op[0] == 'C' && op[1] == 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