#include <iostream>
using namespace std;


int main(){

    float n,a,b;
    float T1,T2;
    float Tot1;
    float Tot2;
    float pos;
    int i;
    cin>>n>>a>>b;

if(a==b){
  cout<<n<<endl;
}else if(a<b){
  T1=a;
  T2=b;
}else{
    T1=b;
    T2=a;
    Tot1=0;
    i=0;
}if(i<n){
    do{
        Tot1=Tot1+T1;
        T1=2*T1;
        i=i+1;
    }while(i<n);
    }else{
     Tot2=0;
     pos = 0;

}if(Tot2<Tot1) {
        do {
            Tot2 = Tot2 + T2;
            T2 = 2 * T2;
            pos = pos + 1;

        } while (Tot2 < Tot1);
    }else{
    cout<<pos<<endl;
}



    return 0;
}