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();
    int count = 0;
    int sumA = 0;

    while (count < B - 1) {
      count += (A - 1);
      sumA++;
    }

    System.out.print(sumA);

    sc.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