#include"communication.h"
#include <bits/stdc++.h>
#define IO_OP ios::sync_with_stdio(0), cin.tie(0)
#define F first
#define S second
#define V vector
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define SZ(v) int((v).size())
#define ALL(v) (v).begin(), (v).end()
using namespace std;
typedef long long ll;
typedef pair<int, int> pi;
typedef V<int> vi;
const int INF = 1e9 + 7;
void encode(int n, int x) {
for(int i = 0; i < 9; i++) {
for(int j = 0; j < 10; j++) {
if(send(0)) {
send(x > 1);
return;
}
}
send(x);
}
}
std::pair<int, int> decode(int n) {
int cnt[2] = {};
for(int i = 0; i < 9; i++) {
for(int j = 0; j < 10; j++) {
if(receive()) {
int x = receive();
return {x + 1, x + 2};
}
}
cnt[receive()]++;
}
if(cnt[0] > cnt[1]) return {1, 2};
else return {2, 3};
}
