#include #include #define ll long long #define INF 1000000005 #define MOD 1000000007 #define EPS 1e-10 #define rep(i,n) for(int i=0;i<(int)(n);++i) #define rrep(i,n) for(int i=(int)(n)-1;i>=0;--i) #define srep(i,s,t) for(int i=(int)(s);i<(int)(t);++i) #define each(a,b) for(auto& (a): (b)) #define all(v) (v).begin(),(v).end() #define len(v) (int)(v).size() #define zip(v) sort(all(v)),v.erase(unique(all(v)),v.end()) #define cmx(x,y) x=max(x,y) #define cmn(x,y) x=min(x,y) #define fi first #define se second #define pb push_back #define show(x) cout<<#x<<" = "<<(x)<auto&operator<<(ostream&o,pairp){return o<<"{"<auto&operator<<(ostream&o,sets){for(auto&e:s)o< auto&operator<<(ostream&o,priority_queueq){while(!q.empty())o<auto&operator<<(ostream&o,map&m){for(auto&e:m)o<auto&operator<<(ostream&o,vectorv){for(auto&e:v)o<void ashow(T t,A...a){cout< struct TRI{S fi;T se;U th;TRI(){}TRI(S f,T s,U t):fi(f),se(s),th(t){} bool operator<(const TRI&_)const{return(fi==_.fi)?((se==_.se)?(th<_.th):(se<_.se)):(fi<_.fi);}}; template auto&operator<<(ostream&o,TRI&t){return o<<"{"< P; typedef pair pll; typedef TRI tri; typedef vector vi; typedef vector vl; typedef vector vvi; typedef vector vvl; typedef vector

vp; typedef vector vd; typedef vector vs; const int MAX_N = 100005; using MPI = boost::multiprecision::cpp_int; MPI mod_pow(MPI a, MPI b, const MPI& mod){ assert(b >= 0); MPI res(1); while(b){ if(b % 2){ res = res * a % mod; } a = a * a % mod; b /= 2; } return res; } MPI gcd(MPI a, MPI b){ MPI tmp; while(b) tmp = a, a = b, b = tmp % b; return a; } int main() { MPI n; cin >> n; MPI a = 2, res, hoge, p, q; while(true){ if(n % a == 0){ cout << "! " << a << " " << n / a << endl; break; } cout << "? " << a << endl; cin >> res; if(res % 2){ ++a; continue; } hoge = mod_pow(a, res / 2, n) + 1; if(hoge == n) continue; p = gcd(n, hoge + 1); cout << "! " << p << " " << n / p << endl; break; } return 0; }