Problem:
Score : 100 points

Problem Statement

Ringo is giving a present to Snuke.

Ringo has found out that Snuke loves yakiniku (a Japanese term meaning grilled meat. yaki: grilled, niku: meat). He supposes that Snuke likes grilled things starting with YAKI in Japanese, and does not like other things.

You are given a string S representing the Japanese name of Ringo's present to Snuke. Determine whether S starts with YAKI.

Constraints

1 \leq |S| \leq 10

S consists of uppercase English letters.

Input

Input is given from Standard Input in the following format:

S

Output

If S starts with YAKI, print Yes; otherwise, print No.

Sample Input 1

YAKINIKU

Sample Output 1

Yes

YAKINIKU starts with YAKI.

Sample Input 2

TAKOYAKI

Sample Output 2

No

TAKOYAKI (a Japanese snack. tako: octopus) does not start with YAKI.

Sample Input 3

YAK

Sample Output 3

No

Solution in Rust (1.15.1) (judge verdict: Accepted)

use std::io;

fn main() {
    let input = read_line();
    let ret = input.starts_with("YAKI");
    println!("{}", if ret {"Yes"} else {"No"})
}

fn read_line() -> String {
    let mut s = String::default();
    io::stdin().read_line(&mut s).ok().expect("read error in read_line");
    s
}

fn read_strings() -> Vec<String> {
    let s = read_line();
    s.split_whitespace().map(|x| x.to_string()).collect::<Vec<String>>()
}