import java.util.*;
public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner stdIn = new Scanner(System.in);
		int a = stdIn.nextInt(); //a個口の電源タップ
		int aa = a-1; //aの値保管用
		
		int b = stdIn.nextInt(); //b以上に拡張したい
		int count = 1; //電源タップの数のカウント
		
		if(b==1){
			System.out.println(0);
			System.exit(0);
		}
		
		if(a>=b){
			System.out.println(count);
			System.exit(0);
		}
		
		do{
			a+=aa;
			count++;
		}while(a<b);
		
		System.out.println(count);
		stdIn.close();
		
		
		
		
		
	}

}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz