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 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<stdio.h>
#define maxn 10000
char s[maxn];

int main()
{
	int i = 0;
	scanf("%s", &s);
	/*
		puts(s);
	*/
	for(; i < 10; )
	{
		if(s[i] == 'Y')
		{
			i++;
			if(s[i] == 'A')
			{
				i++;
				if(s[i] == 'K')
				{
					i++;
					if(s[i] == 'I')
					{
						i++;
						break;
					}
				}
			}
		}
		else
			break;
	}
	if(i == 4)
		printf("Yes");
	else
		printf("No");
	
	return 0;
}