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 C++14 (GCC 5.4.1) (judge verdict: Accepted)

#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,sse4,popcnt,abm,mmx")

#include <bits/stdc++.h>
#define pb push_back
#define pp pop_back()
#define mp make_pair
#define f first
#define s second
#define y1 yasfasf
#define kz ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define FILE "substring"

#define fr freopen(FILE".in", "r", stdin); freopen(FILE".out", "w", stdout);
using namespace std;
typedef pair <int, int> pii;
typedef long long ll;
typedef unsigned long long ull;
typedef unsigned int ui;
typedef struct node* treap;

const int N = 1e5 + 11, inf = 1e9;
const ll linf = 1e18, mod = 1e9 + 7;

int main(){
	string s;
	cin >> s;
	if(s.size() >= 4 && s.substr(0, 4) == "YAKI")
		cout << "Yes";
	else cout << "No";
	return 0;
}