import java.util.Scanner;

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

        int A = s.nextInt();
        int B = s.nextInt();

        int sum = 0;

        if (B > 1)
        {
            while (true) {
                sum++;
                if ((A - 1) * (sum - 1) + A >= B) break;
            }
        }

        System.out.println(sum);
        s.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