h,w=map(int,input().split())
n=int(input())
e=[[i for i in input().split()] for i in range(n)]
s=0
t=0
for i in range(n-1,-1,-1):
        if e[i][0]=="R":
            if int(e[i][1])==t:
                if s==0:
                    s=w-1
                    print(s,t)
                else:
                    s-=1
        else:
            if int(e[i][1])==s:
                if t==0:
                    t=h-1
                else:
                    t-=1
if (s%2==1 and t%2==0) or (s%2==0 and t%2==1):
    print("black")
else:
    print("white")