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()) {
    return -1;
  } else {
    let mut result = None;
    let mut skip = 0;
    for i in 0..s.len() - t.len() + 1 {
      if skip > 0 {
        skip -= 1;
        continue;
      }
      let sub = format!("{}", &s.as_str()[i..i+t.len()]);
      if sub == t {
        result = match result {
          None => Some(1),
          Some(v) => Some(v+1),
        };
        skip = t.len() - 1;
      }
    }
    result.unwrap_or(0)
  }
}