#include "bits/stdc++.h"
using namespace std;
#define fastcin {\
    cin.tie(0);\
    ios::sync_with_stdio(false);\
}
#define rep(i, a, b) for(int i = a; i < b; i++)
#define rrep(i, a, b) for(int i = a; i >= b; i--)
#define fore(i, a) for(auto &i:a)
#define print(x) cout << x << "\n"
#define SORT(a, n) sort(a, a+n);
#define REVERSE(a,n) reverse(a,a+n);
#define VSORT(v) sort(v.begin(), v.end());
#define VREVERSE(v) reverse(v.begin(), v.end());
#define MOD 1000000007
#define yes "YES"
#define no "NO"
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;

bool g[10000][10000];
int h, w, n;
void r(int num) {
    bool t = g[num][w-1];
    rrep(i, w-1, 1) {
        g[num][i] = g[num][i-1];
    }
    g[num][0] = t;
}
void c(int num) {
    bool t = g[h-1][num];
    rrep(i, h-1, 1) {
        g[i][num] = g[i-1][num];
    }
    g[0][num] = t;
}
int main() {
    fastcin;
    cin >> h >> w >> n;
    char s;
    int k;
    rep(i, 0, h) {
        bool b = i%2==0 ? true : false;
        rep(j, 0, w) {
            g[i][j] = b;
            b = !b;
        }
    }
    rep(i, 0, n) {
        cin >> s;
        cin >> k;
        if(s=='R') r(k);
        else c(k);
    }
    string ans = "black";
    if(g[0][0]) ans = "white";
    printf("%s\n", ans.c_str());
    return 0;
}