import java.util.*;
public class Main {

	public static void main(String[] args) {
		Scanner scan =new Scanner(System.in);

		int A=scan.nextInt();
		int B=scan.nextInt();
		int tap=1;
		int n=0;
		if  (tap<B) {
			tap=A;
			n+=1;
		}
		while (tap<B) {
			tap+=A-1;
			n+=1;
		}
		System.out.print(n);
	}

}
/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