#include #include #include #include #include #include #include #include #include #include using namespace std; typedef long long ll; const ll INF=1LL<<60; typedef pair P; typedef pair PP; const ll MOD=1e9+7; int main(){ int x0=100; cout<<"? "<>a0; int x1=100-a0-1; cout<<"? "<>a1;//f(100-a0-1)=B-1 int A,B; if(a0==99){ A=99; B=100; cout<<"! "<