diff --git a/src/task_1/index.js b/src/task_1/index.js
index 966f6fc..4a63bcb 100644
--- a/src/task_1/index.js
+++ b/src/task_1/index.js
@@ -20,6 +20,32 @@
 @returns {boolean} Результат добавления
  */
 function add(phoneBook, phone, name, email) {
+	phoneBook = [];
+	if (name !== '' && name !== undefined && isPhjneCorrect(phone)){
+		phone = phone.match(/\d/g).join('');
+		const entry = { phone: phone, name: name, email: email };
+		if (!isPhoneBook(phone, phoneBook)){
+			phoneBook.push(entry);
+			return true;
+		}
+	}
+	return false;
+}
+
+function isPhjneCorrect(phone){
+	let reg = /^\+7-\d{3}-\d{3}-\d{2}-\d{2}$/;
+	let reg1 = /^\+7\d{10}$/;
+	return reg.test(phone) || reg1.test(phone);
+}
+
+function isPhoneBook(phoneBook, phone){
+	for (let entry of phoneBook){
+		if (entry.phone === phone){
+			return true;
+		}
+	}
+	return false;
 }
 
 module.exports.add = add;
+module.exports.isPhjneCorrect = isPhjneCorrect;
\ No newline at end of file
diff --git a/src/task_2/index.js b/src/task_2/index.js
index a5ad6b9..746891c 100644
--- a/src/task_2/index.js
+++ b/src/task_2/index.js
@@ -18,7 +18,21 @@
 @param {string} email Электронная почта
 @returns {boolean} Результат обновления
  */
+const { isPhjneCorrect } = require('../../src/task_1/index');
 function update(phoneBook, phone, name, email) {
+	if(name !== undefined && name !== ''){
+		if (isPhjneCorrect(phone)){
+			phone = phone.match(/\d/g).join('');
+			for (let entry of phoneBook){
+				if (entry.phone === phone){
+					entry.name = name;
+					entry.email = email;
+					return true;
+				}
+			}
+		}
+	}
+	return false;
 }
 
 module.exports.update = update;
diff --git a/src/task_3/index.js b/src/task_3/index.js
index 67fd3cf..9c3a1eb 100644
--- a/src/task_3/index.js
+++ b/src/task_3/index.js
@@ -19,6 +19,45 @@
 @returns {Array<string>} Результаты поиска
  */
 function find(phoneBook, query) {
+	let result = [];
+	let firstBufer;
+	let secondBufer;
+	let array;
+	if (query ==='')
+		return query;
+
+    for (const entry of phoneBook)
+	{
+		if (query === '*')			
+		{
+        	secondBufer = entry.phone.replace(/\d/g,'');
+        	array = secondBufer.split('');
+        	entry.phone =`+${array[0]} (${array[1]+array[2]+array[3]}) ${array[4]+array[5]+array[6]}-${array[7]+array[8]}-${array[9]+array[10]}`;
+        	if (entry.email !== undefined)
+			{
+				result.push(entry.name+' '+entry.phone+' '+entry.email);
+			}
+			else result.push(entry.name+' '+entry.phone);
+    	}
+		else
+		{ 
+    		secondBufer = entry.phone.replace(/\d/g,'');
+    		array = secondBufer.split('');
+    		firstBufer = array.join('');
+    		secondBufer = `+${array[0]}-${array[1]+array[2]+array[3]}-${array[4]+array[5]+array[6]}-${array[7]+array[8]}-${array[9]+array[10]}`;
+    		if (firstBufer.includes(query)||secondBufer.includes(query)||(entry.email !== undefined && entry.email.includes(query))||entry.name.includes(query))          
+    		{
+        		entry.phone =`+${array[0]} (${array[1]+array[2]+array[3]}) ${array[4]+array[5]+array[6]}-${array[7]+array[8]}-${array[9]+array[10]}`;
+        		if (entry.email !== undefined)
+				{
+					result.push(entry.name+' '+entry.phone+' '+entry.email);
+				}
+				else result.push(entry.name+' '+entry.phone);
+    		}	
+		}
+	}
+
+	return result.sort();			
 }
 
 module.exports.find = find;
diff --git a/test/task_1/index.test.js b/test/task_1/index.test.js
index c08a22a..0a461b3 100644
--- a/test/task_1/index.test.js
+++ b/test/task_1/index.test.js
@@ -1,4 +1,4 @@
-const { add } = require('../../src/task_1/index');
+const { add } = require('GitHub/js-task-2/src/task_1/index');
 
 const phoneBook = [];