#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    const ll MOD = 1000000007;
    // 1) Query the judge:
    //    A = MOD, B = MOD
    cout << MOD << " " << MOD << endl << flush;

    // 2) Read K = gcd(X, A^B mod MOD) = gcd(X,0) = X
    ll K;
    if (!(cin >> K)) return 0;

    // 3) Guess X' = X (since X^(MOD) mod MOD = X)
    cout << K << endl << flush;

    // 4) Read verdict (not really needed)
    int verdict;
    cin >> verdict;
    return 0;
}