#include<iostream>
#include<fstream>
using namespace std;
int cautare_binara(int nr){
    int st=0,dr=n-1,mid;
    while(st<dr){
        mid=(st+dr)/2;
        if(v[mid]==nr)
            return mid;
        else if(v[mid]>nr)
            dr=mid;
        else st=mid+1;
    }
    else return -1;
}
int main(){
    ifstream fin("cautbin.in");
    ofstream fout("cautbin.out");

}