diff --git a/kohei_zev/mail.rb b/kohei_zev/mail.rb
new file mode 100644
index 0000000..8118d06
--- /dev/null
+++ b/kohei_zev/mail.rb
@@ -0,0 +1,19 @@
+#open("map.txt") do |f|
+#  p f.read
+#end
+require "nkf"
+
+def to_katakana(s)
+  NKF.nkf("-w -h2", s)
+end
+
+# boot strap hash table
+puts "trasform = Hash.new {|h,k| h[k] = [] }"
+transform = IO.readlines("map.txt").inject({}) do |hash, line|
+d=line.split
+val = d.first.strip
+keys = d[1..-1].map {|k| k.strip.split("、") }.flatten
+keys.each do |k|
+  puts "transform[\"#{to_katakana(k)}\"] = \"#{val}\""
+end
+end
\ No newline at end of file
diff --git a/kohei_zev/map.txt b/kohei_zev/map.txt
new file mode 100644
index 0000000..3d343d3
--- /dev/null
+++ b/kohei_zev/map.txt
@@ -0,0 +1,11 @@
+0	まる、ま	れい、れ	オウ、ゼロ、ゼ
+1	ひとつ、ひと、ひ	いち、い	ワン
+2	ふたつ、ふた、ふ	に	ツ
+3	みつ、み	さん、さ	スリー
+4	よん、よ、よつ	し	フォー
+5	いつつ、いつ	ご、こ	ファイブ、ファイヴ
+6	むつ、む	ろく、ろ	シックス
+7	ななつ、なな、な	しち	セブン、セヴン
+8	やつ、や	はち、は、ば	エート
+9	ここのつ、こ	きゅう、く	ナイン
+10	とお	じゅう、じ	テン
\ No newline at end of file
diff --git a/kohei_zev/q1.rb b/kohei_zev/q1.rb
new file mode 100644
index 0000000..0ce92f7
--- /dev/null
+++ b/kohei_zev/q1.rb
@@ -0,0 +1,121 @@
+#coding:utf-8
+
+require "nkf"
+
+class KanaToNumber
+  
+  def self.convert(string)
+    Scanner.new(string, @transform).scan
+  end
+  
+  # Big tranformation table
+  transform = Hash.new # {|h,k| h[k] = [] }
+  transform["マル"] = "0"
+  transform["マ"] = "0"
+  transform["レイ"] = "0"
+  transform["レ"] = "0"
+  transform["オウ"] = "0"
+  transform["ゼロ"] = "0"
+  transform["ゼ"] = "0"
+  transform["ヒトツ"] = "1"
+  transform["ヒト"] = "1"
+  transform["ヒ"] = "1"
+  transform["イチ"] = "1"
+  transform["イ"] = "1"
+  transform["ワン"] = "1"
+  transform["フタツ"] = "2"
+  transform["フタ"] = "2"
+  transform["フ"] = "2"
+  transform["ニ"] = "2"
+  transform["ツ"] = "2"
+  transform["ミツ"] = "3"
+  transform["ミ"] = "3"
+  transform["サン"] = "3"
+  transform["サ"] = "3"
+  transform["スリー"] = "3"
+  transform["ヨン"] = "4"
+  transform["ヨ"] = "4"
+  transform["ヨツ"] = "4"
+  transform["シ"] = "4"
+  transform["フォー"] = "4"
+  transform["イツツ"] = "5"
+  transform["イツ"] = "5"
+  transform["ゴ"] = "5"
+  transform["コ"] = "5"
+  transform["ファイブ"] = "5"
+  transform["ファイヴ"] = "5"
+  transform["ムツ"] = "6"
+  transform["ム"] = "6"
+  transform["ロク"] = "6"
+  transform["ロ"] = "6"
+  transform["シックス"] = "6"
+  transform["ナナツ"] = "7"
+  transform["ナナ"] = "7"
+  transform["ナ"] = "7"
+  transform["シチ"] = "7"
+  transform["セブン"] = "7"
+  transform["セヴン"] = "7"
+  transform["ヤツ"] = "8"
+  transform["ヤ"] = "8"
+  transform["ハチ"] = "8"
+  transform["ハ"] = "8"
+  transform["バ"] = "8"
+  transform["エート"] = "8"
+  transform["ココノツ"] = "9"
+  transform["コ"] = "9"
+  transform["キュウ"] = "9"
+  transform["ク"] = "9"
+  transform["キュー"] = "9"
+  transform["トオ"] = "10"
+  transform["ジュウ"] = "10"
+  transform["ジ"] = "10"
+  transform["テン"] = "10"
+  @transform = transform
+  
+end
+
+class Scanner
+
+  def initialize(source, transform_hash)
+    @source = source
+    @transform = transform_hash
+    @current_pos = 0
+    @result = ""
+    explode_source
+  end
+
+  def to_katakana(s)
+    NKF.nkf("-w -h2", s)
+  end
+  
+  def explode_source
+    @source_array = to_katakana(@source).split(//) 
+  end
+  
+  def scan
+    @current_pos = 0
+    
+    while @current_pos < @source_array.size
+      r, npos = match(@source_array, @current_pos)
+      if r.nil?
+        raise "No match for #{@source} at pos #{@current_pos}"
+      end
+      @result<< r
+      @current_pos = npos
+    end
+    
+    @result
+  end
+  
+  def match(strs, pos, hitting_key = "")
+    #puts "db : #{hitting_key} pos #{pos} strs #{strs}"
+    return [@transform[hitting_key], pos] if pos >= strs.size
+    k = hitting_key + strs[pos]
+    if @transform[k]
+      match(strs, pos + 1, k)
+    else
+      [@transform[hitting_key], pos]
+    end
+  end
+  
+end
diff --git a/kohei_zev/q1_test.rb b/kohei_zev/q1_test.rb
new file mode 100644
index 0000000..50d50f4
--- /dev/null
+++ b/kohei_zev/q1_test.rb
@@ -0,0 +1,29 @@
+#coding:utf-8
+
+require_relative "q1"
+require "minitest/autorun"
+
+class TestQ1 < MiniTest::Unit::TestCase
+  def test_raise_on_unmatchable
+    assert_raises(RuntimeError) do
+      KanaToNumber.convert("テスト")
+    end
+  end
+  
+  def test_good_one
+    assert_equal "749",KanaToNumber.convert("ななつしく")
+    assert_equal "889",KanaToNumber.convert("ハヤク")
+    assert_equal "758",KanaToNumber.convert("ナゴヤ")
+    assert_equal "931",KanaToNumber.convert("クサイ")
+    assert_equal "315",KanaToNumber.convert("サイゴ")
+  end
+  
+  def test_harder
+    assert_equal "18782",KanaToNumber.convert("イヤナヤツ")
+  end
+  def test_harder_more
+    assert_equal "39",KanaToNumber.convert("サンキュー")
+  end
+end
+
+