fn read<T: std::str::FromStr>() -> T {
  let mut s = String::new();
  std::io::stdin().read_line(&mut s).ok();
  s.trim().parse().ok().unwrap()
}

fn main() {
  let s: String = read();
  let t: String = read();
  println!("{}", no1005(s,t));
}

fn no1005(s: String, t: String) -> i32 {
  if t.len() == 1 && s.contains(t.chars().next().unwrap()) {
    -1
  } else if t.len() > s.len() {
    0
  } else {
    let mut result = None;
    let mut idx = 0;
    let max = s.len() - t.len() + 1;
    loop {
      let sub = format!("{}", &s.as_str()[idx..idx+t.len()]);
      if sub == t {
        result = match result {
          None => Some(1),
          Some(v) => Some(v+1),
        };
        idx = idx + t.len() - 1;
      } else {
        idx = idx + 1;
      }
      if idx >= max {
        break;
      }
    }

    result.unwrap_or(0)
  }
}