#include <iostream>
using namespace std;
int main() {
    int celeb = -1;
    for(int i=0;i<n;++i) {
        bool flag = true;
        for(int j=0;j<n;++j)
            if(i != j)
                if(ask(i, j) == false)     //imagine you have a finction ask, which tell you the answer for question ask(a, b). if b know a it returns true
                    flag = false;
        if(flag == true)
            celeb = i;
    }
    
    if(celeb != -1)
        cout << "We find it!! celebrity is: " << celeb + 1 << endl;
    else
        cout << "There is no celebrity :(" << endl;
        
    return 0;
}