180210_1057_토너먼트

	//https://www.acmicpc.net/problem/1057 #include <iostream>
	using namespace std;
	int N, A, B;
	int main(){
	cin >> N >> A >> B;
	int ans=1;
	while(1){
	if((!(A%2) && B==A-1) ||(!(B%2) && A==B-1)) break;
	else {
	if(A%2) A=(A+1)/2;
	else A=A/2;
	if(B%2) B=(B+1)/2;
	else B=B/2;
	}
	ans++;
	}
	cout << ans;
	}