import java.util.Scanner;

public class Main {
        public static void main(String[] args) {
                Scanner sc = new Scanner(System.in);
                int A = sc.nextInt();
                int B = sc.nextInt();
                sc.close();
                int r = (B - 1) / (A - 1);
                int d = (B - 1) % (A - 1) > 0 ? 1 : 0;
                System.out.println(r + d) ;
        }
}

/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