diff --git a/hw02_unpack_string/.sync b/hw02_unpack_string/.sync
deleted file mode 100644
index e69de29..0000000
diff --git a/hw02_unpack_string/go.mod b/hw02_unpack_string/go.mod
index 32a9588..65519f9 100644
--- a/hw02_unpack_string/go.mod
+++ b/hw02_unpack_string/go.mod
@@ -1,10 +1,9 @@
-module github.com/fixme_my_friend/hw02_unpack_string
+module github.com/DenSul/OtusGolang/hw02_unpack_string
 
 go 1.16
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/stretchr/testify v1.7.0
-	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
 )
diff --git a/hw02_unpack_string/go.sum b/hw02_unpack_string/go.sum
index 62f8b7f..c221f64 100644
--- a/hw02_unpack_string/go.sum
+++ b/hw02_unpack_string/go.sum
@@ -1,20 +1,13 @@
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.5.0 h1:DMOzIV76tmoDNE9pX6RSN0aDtCYeCg5VueieJaAo1uw=
-github.com/stretchr/testify v1.5.0/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
-gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/hw02_unpack_string/unpack.go b/hw02_unpack_string/unpack.go
index 41f003d..0dc9256 100644
--- a/hw02_unpack_string/unpack.go
+++ b/hw02_unpack_string/unpack.go
@@ -1,12 +1,59 @@
-package hw02unpackstring
+package main
 
 import (
 	"errors"
+	"strconv"
+	"strings"
+	"unicode"
 )
 
 var ErrInvalidString = errors.New("invalid string")
 
-func Unpack(_ string) (string, error) {
-	// Place your code here.
-	return "", nil
+func isValidStr(runesArray []rune) bool {
+	var previousIsDigit bool
+	for key, char := range runesArray {
+		currentIsDigit := unicode.IsDigit(char)
+		if key == 0 {
+			if currentIsDigit {
+				return false
+			}
+			previousIsDigit = currentIsDigit
+			continue
+		}
+
+		if currentIsDigit && previousIsDigit {
+			return false
+		}
+
+		previousIsDigit = currentIsDigit
+	}
+
+	return true
+}
+
+func Unpack(s string) (string, error) {
+	stringBuilder := strings.Builder{}
+	runesArray := []rune(s)
+	if !isValidStr(runesArray) {
+		return "", ErrInvalidString
+	}
+
+	var buf string
+	for key, char := range runesArray {
+		currentSymbol := string(char)
+		if unicode.IsDigit(char) && buf != "" && buf != "\\" {
+			countRepeat, _ := strconv.Atoi(currentSymbol)
+			stringBuilder.WriteString(strings.Repeat(buf, countRepeat))
+			continue
+		}
+
+		if len(runesArray) > key+1 && unicode.IsDigit(runesArray[key+1]) {
+			buf = string(char)
+			continue
+		}
+
+		stringBuilder.WriteRune(char)
+	}
+
+	return stringBuilder.String(), nil
 }
diff --git a/hw02_unpack_string/unpack_test.go b/hw02_unpack_string/unpack_test.go
index 9799e18..077531c 100644
--- a/hw02_unpack_string/unpack_test.go
+++ b/hw02_unpack_string/unpack_test.go
@@ -1,4 +1,4 @@
-package hw02unpackstring
+package main
 
 import (
 	"errors"