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 Python (3.4.3) (judge verdict: Runtime Error)

def func() :
    n,m=map(int,input().split())
    a={}
    for i in range(n) :
        s = input()
        for c in list(s):
            if c in a:
                a[c]+=1
            else :
                a[c] = 1
    c1=n*m%2
    d1=sum(filter(lambda x : x%2 , a.values()))
    if c1 < d1:
        print('No')
        return
    c4 = (n//2*2)*(m//2*2)
    d4 = sum(filter(lambda x : x//4*4 , a.values()))
    if c4>d4 :
        print('No')
        return
    print('Yes')
func()