diff --git a/golang/internal/laba5/laba5.go b/golang/internal/laba5/laba5.go
new file mode 100644
index 00000000..fd40837d
--- /dev/null
+++ b/golang/internal/laba5/laba5.go
@@ -0,0 +1,57 @@
+package laba5
+import (
+	"errors"
+)
+type (
+	Year int
+	Killogram int
+)
+const (
+	ErrIncorrectYear = "неправильный возраст"
+	ErrIncorrectKillogram = "неправильный вес"
+)
+type Dog struct {
+	age Year 
+	ves Killogram
+	poroda string
+}
+func (d * Dog) SetAge(age Year) error{
+	if age >= 0 && age <= 20{
+		d.age = age
+		return nil
+	}
+	return errors.New(ErrIncorrectYear)
+}
+func (d * Dog) SetVes(ves Killogram) error{
+	if ves >= 5 && ves <= 65{
+		d.ves = ves
+		return nil
+	}
+	return errors.New(ErrIncorrectKillogram)
+}
+func (d * Dog) SetPoroda(poroda string){
+	d.poroda = poroda
+}
+func (d Dog) GetAge() Year{
+	return d.age
+}
+func (d Dog) GetVes() Killogram{
+	return d.ves
+}
+func (d Dog) GetPoroda() string{
+	return d.poroda
+}
+func NewDog(age Year, ves Killogram, poroda string)(*Dog, error){
+	tmp := &Dog{
+		age: age,
+		ves : ves, 
+		poroda: poroda,
+	}
+	if err := tmp.SetAge(age); err != nil{
+		return nil, err
+	}
+	if err := tmp.SetVes(ves); err != nil{
+		return nil, err
+	}
+	return tmp, nil
+}
\ No newline at end of file
diff --git a/golang/main.go b/golang/main.go
index 1162421d..a63f33e8 100644
--- a/golang/main.go
+++ b/golang/main.go
@@ -4,10 +4,19 @@ import (
 	"fmt"
 
 	"isuct.ru/informatics2022/internal/laba4"
+	"isuct.ru/informatics2022/internal/laba5"
 )
 
 func main() {
 	fmt.Println("Яковлева Алёна")
+	dog, err := laba5.NewDog(20, 65, "Овчарка")
+	if err == nil {
+		fmt.Printf("Dog age is %d\n", dog.GetAge())
+		fmt.Printf("Dog ves is %d\n", dog.GetVes())
+		fmt.Printf("Dog poroda is %s\n", dog.GetPoroda())
+	}else{
+		fmt.Println(err)
+	}
 	y1 := laba4.Task1(0.22, 0.92, 0.14)
 	y2 := laba4.Task2([]float64{0.1, 0.35, 0.4, 0.55, 0.6})
 	fmt.Println(y1)