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 Pascal (FPC 2.6.2) (judge verdict: Accepted)

var
a:array [1..255] of char;
b:string;
h,i:longint;
begin
read(b);
for i:=1 to length(b) do
begin
if length(b)<4 then h:=1
else a[i]:=b[i];
end;
if h<>1 then
if (a[1]='Y') and (a[2]='A') and  (a[3]='K') and (a[4]='I') then
write('Yes')
else write('No')
else write('No');
end.