import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);

        String[]  input1 = s.nextLine().split(" ");
        //1taps
        int A = Integer.valueOf(input1[0]);
        //min count
        int B = Integer.valueOf(input1[1]);

        int ct = 1;
        int hole = A;
        if (B != 1) {
            while(true) {
                if (hole >= B) break;
                ct++;
                hole += A-1;
            }
        } else {
            ct = 0;
        }

        System.out.println(ct);
    }
}
/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