diff --git a/LICENSE b/LICENSE
index a0bf6f4..b5520a3 100644
--- a/LICENSE
+++ b/LICENSE
@@ -75,7 +75,7 @@ If you develop a new program, and you want it to be of the greatest possible use
 
 To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found.
 
-     phones_filter Copyright (C) 19yy Datenlabor
+     less Copyright (C) 19yy Datenlabor
 
      This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version.
 
diff --git a/README.md b/README.md
index 37eba0c..29e58d3 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,39 @@
-# phones_filter
+# Лексический анализатор российских мобильных номеров
+
+Лексический анализатор для фильтрования сообщений с номерами телефонов российских мобильных номеров, введенных любым способом: цифрами, словами, вперемежку словами и цифрами. 
+
+Флаг определения номера после анализа - наличие паттерна кода оператора.
+
+Если номер найден, возвращается ошибка и номер телефона в национальном формате без кода страны. Например: (937) 987-58-42.
+
+
+## Компиляция:
+
+С использованием Flex (Потребуется пакет libfl-dev):
+
+```
+lex filter.l
+gcc -o filter -lfl lex.yy.c 
+
+```
+
+C использованием Lex:
+
+```
+lex filter.l
+cc -o filter -ll lex.yy.c 
+
+```
+
+## Тест
+
+```
+./filter < test.txt
+
+```
+
+Тестовое сообщение: девять 3 семь восемь 8 шесть 58 четыре два
+
+
+
 
-Лексический анализатор для поиска и фильтрации российских мобильных номеров в тексте
\ No newline at end of file
diff --git a/filter b/filter
new file mode 100755
index 0000000..d498a02
Binary files /dev/null and b/filter differ
diff --git a/filter.l b/filter.l
new file mode 100644
index 0000000..76d4f4d
--- /dev/null
+++ b/filter.l
@@ -0,0 +1,61 @@
+%{
+
+	int n = 0;   
+    int numbers[110]; 
+    int code = 0;
+
+	int codes[73] = {900,902,903,904,905,906,908,909,950,951,
+	953,960,961,962,963,964,965,966,967,968,969,980,983,986,
+	901,910,911,912,913,914,915,916,917,918,919,978,981,982,
+	984,985,495,987,988,989,920,921,922,923,924,925,926,927,
+	928,929,930,931,932,933,934,936,937,938,939,999,952,958,
+	977,991,992,993,994,995,996};
+
+%}
+
+%%
+
+[0-9]	n++; numbers[n]=atoi(yytext); 
+("\xd1\x81"|"\xd0\xa1")("\xd1\x82\xd0\xbe")	n++; numbers[n]=1; 
+("\xd0\xbe"|"\xd0\x9e")("\xd0\xb4\xd0\xb8\xd0\xbd")	n++; numbers[n]=1; 
+("\xd0\xb4"|"\xd0\x94")("\xd0\xb2\xd0\xb0")	n++; numbers[n]=2; 
+("\xd0\xb4"|"\xd0\x94")("\xd0\xb2\xd0\xb5")	n++; numbers[n]=2;
+("\xd1\x82"|"\xd0\xa2")("\xd1\x80\xd0\xb8")	n++; numbers[n]=3; 
+("\xd1\x87"|"\xd0\xa7")("\xd0\xb5\xd1\x82\xd1\x8b\xd1\x80")	n++; numbers[n]=4; 
+("\xd1\x81"|"\xd0\xa1")("\xd0\xbe\xd1\x80\xd0\xbe\xd0\xba")	n++; numbers[n]=4; 
+("\xd0\xbf"|"\xd0\x9f")("\xd1\x8f\xd1\x82")	n++; numbers[n]=5; 
+("\xd1\x88"|"\xd0\xa8")("\xd0\xb5\xd1\x81\xd1\x82")	n++; numbers[n]=6; 
+("\xd1\x81"|"\xd0\xa1")("\xd0\xb5\xd0\xbc")	n++; numbers[n]=7; 
+("\xd0\xb2"|"\xd0\x92")("\xd0\xbe\xd1\x81\xd0\xb5\xd0\xbc")	n++; numbers[n]=8;
+("\xd0\xb4"|"\xd0\x94")("\xd0\xb5\xd0\xb2\xd1\x8f")	n++; numbers[n]=9;
+("\xd0\x94"|"\xd0\xb4")("\xd0\xb5\xd1\x81\xd1\x8f\xd1\x82\xd1\x8c")	n++; numbers[n]=1; n++; numbers[n]=0; 
+("\xd0\x9e"|"\xd0\xbe")("\xd0\xb4\xd0\xb8\xd0\xbd\xd0\xbd\xd0\xb0\xd0\xb4")	n++; numbers[n]=1; n++; numbers[n]=1; 
+("\xd0\x94"|"\xd0\xb4")("\xd0\xb2\xd0\xb5\xd0\xbd\xd0\xb0\xd0\xb4")	n++; numbers[n]=1; n++; numbers[n]=2; 
+("\xd0\xa2"|"\xd1\x82")("\xd1\x80\xd0\xb8\xd0\xbd\xd0\xb0\xd0\xb4")	n++; numbers[n]=1;n++; numbers[n]=3; 
+("\xd0\xa7"|"\xd1\x87")("\xd0\xb5\xd1\x82\xd1\x8b\xd1\x80\xd0\xbd\xd0\xb0\xd0\xb4")	n++; numbers[n]=1;n++; numbers[n]=4; 
+("\xd0\x9f"|"\xd0\xbf")("\xd1\x8f\xd1\x82\xd0\xbd\xd0\xb0\xd0\xb4")	n++; numbers[n]=1;n++; numbers[n]=5; 
+("\xd0\xa8"|"\xd1\x88")("\xd0\xb5\xd1\x81\xd1\x82\xd0\xbd\xd0\xb0\xd0\xb4\xd1\x86")	n++; numbers[n]=1;n++; numbers[n]=6; 
+("\xd0\xa1"|"\xd1\x81")("\xd0\xb5\xd0\xbc\xd0\xbd\xd0\xb0\xd0\xb4\xd1\x86")	n++; numbers[n]=1;n++; numbers[n]=7; 
+("\xd0\x92"|"\xd0\xb2")("\xd0\xbe\xd1\x81\xd0\xb5\xd0\xbc\xd0\xbd\xd0\xb0\xd0\xb4")	n++; numbers[n]=1;n++; numbers[n]=8; 
+("\xd0\x94"|"\xd0\xb4")("\xd0\xb5\xd0\xb2\xd1\x8f\xd1\x82\xd1\x8c\xd0\xbd\xd0\xb0\xd0\xb4")	n++; numbers[n]=1;n++; numbers[n]=9; 
+("\xd0\x94"|"\xd0\xb4")("\xd0\xb2\xd0\xb0\xd0\xb4")	n++; numbers[n]=2;n++; numbers[n]=0; 
+\n 
+.
+
+%%
+int main()
+{
+  yylex();
+   for(int i=0; i<=n; i++) {
+	if (numbers[i]==9 && (n-i)>8) {
+		code = 900 + numbers[i+1]*10 + numbers[i+2];
+		for(int j=0; j<=73; j++) {
+			if (codes[j]==code) {			
+				printf( "(%d) %d%d%d-%d%d-%d%d", code, numbers[i+3],numbers[i+4],numbers[i+5],numbers[i+6],numbers[i+7],numbers[i+8],numbers[i+9]);	
+				exit(EXIT_FAILURE);
+			}
+		}
+	}
+  }
+  exit(EXIT_SUCCESS);
+}
diff --git a/test.txt b/test.txt
new file mode 100644
index 0000000..cb39fa3
--- /dev/null
+++ b/test.txt
@@ -0,0 +1 @@
+девять 3 семь восемь 8 шесть 58 четыре два