#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (int)(n); i++)

using namespace std;
using LL = long long;
using P = pair<int,int>;
using vv = vector<vector<int>>;
const int INF = (int)1e9;
const LL LINF = (LL)1e18;

int main(){
    int H, W, p;
    cin >> H >> W >> p;
    rep(i,1001){
        string ans = "INVALID";
        cout << ans << endl;
        int res;
        cin >> res;
    }

    return 0;
}