import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    // TODO 自動生成されたメソッド・スタブ
    Scanner sc = new Scanner(System.in);
    int i = sc.nextInt();
    int j = sc.nextInt();

    int c = 0;
    if ((j - 1) % (i - 1) == 0) {
      c = (j - 1) / (i - 1);
    } else {
      c = (j - 1) / (i - 1) + 1;
    }

    System.out.println(c);
  }
}

/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