H,W=[int(i) for i in input().split()]
N=int(input())
sousas=[]
for i in range(N):
    sousa=input().split()
    sousas.append(sousa)

#init
black=[[False for i in range(W)] for j in range(H)]
for i in range(H):
    offset=(i+1)%2
    for j in range(offset,W,2):
        black[i][j]=True

now_pos=[0,0]
for sousa in reversed(sousas):
    if sousa[0]=='R':
        row=int(sousa[1])
        if now_pos[0]==row:
            if now_pos[1]==0:
                now_pos=[now_pos[0],W-1]
            else:
                now_pos=[now_pos[0],now_pos[1]-1]
    else:
        col=int(sousa[1])
        if now_pos[1]==col:
            if now_pos[0]==0:
                now_pos=[H-1,now_pos[1]]
            else:
                now_pos=[now_pos[0]-1,now_pos[1]]
    # for i in range(H):
    #     print(black[i])
    # print('\n')
ans='black' if black[now_pos[0]][now_pos[1]]==True else 'white'
print(ans)