#include <bits/stdc++.h> #define int64 long long #define pb push_back #define mp make_pair #define INF numeric_limits<int>::max() using namespace std; int main() { int n=0; int x=0,y=0; while(1) { cout<<x<<' '<<y<<'\n'; cout.flush(); int h; cin>>h; if(h==0)return 0; else{ x++; if(x==201)x=0,y++; } } return 0; }