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 Ruby (2.3.3) (judge verdict: Runtime Error)

n, m = gets.chomp.split(" ").map(&:to_i)
h = Hash.new(0)
n.times do
  row = gets.chomp.split("")
  row.each do |c|
    h[c] += 1
  end
end
if n.even? && m.even? then
  g1 = 0
  g2 = 0
  # g4 = (n / 2) * (m / 2)
elsif n.odd? && m.odd? then
  g1 = 1
  g2 = (n / 2) + (m / 2)
  # g4 = (n / 2) * (m / 2)
else
  g1 = 0
  g2 = 0
  g2 += (n / 2) if n.even?
  g2 += (m / 2) if m.even?
  g4 = (n / 2) * (m / 2)
end

# p h
# p [g1, g2, g4]
flag = true
h.each do |k, v|
  if g1 < 0 || g2 < 0 then
    flag = false
    break
  end
  if v % 4 == 0 then
    next
  elsif v % 4 == 2 then
    g2 -= 1
  elsif v % 4 == 3 then
    g2 -= 1
    g1 -= 1
  else
    g1 -= 1
  end
end
# p h
if flag then
  puts "Yes"
else
  puts "No"
end