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 x:String = read();
 
 if !s.contains(&x) {
    println!("0");
    }else if x.len() == 1 {
        println!("-1");
       }else{
      let count = s.matches(&x).count();  println!("{}",count);
    };

}