import java.util.Scanner;
class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    
    int mouth = 1;
    int count = 0;
    
    for(int i=0;i<100;i++){      
      if(mouth<B){
        mouth += A-1;
        count++;
      }else{
        break;
      }
    }
     System.out.println(count);
  }
}
/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