import java.util.*;
public class Main {

  public static void main(String[] args) { 
      Scanner sc = new Scanner(System.in);
      String s = sc.next();
      String t = sc.next();
      
      int lenT = t.length();
      if(lenT == 1) {
          for(char c : s.toCharArray())
            if(c == t.charAt(0)) {
                System.out.println(-1);
                return;
            }
          System.out.println(0);
          return;
      }
      int cnt = 0;
      for(int i = 0; i < s.length() - lenT + 1;) {
        if(s.substring(i, i + lenT).equals(t)) {
          cnt++;
          i += lenT - 1;
        } else i++;
      }
      System.out.println(cnt);
  }
}