diff --git a/README.md b/README.md
index c5d4f5b..338aa0c 100644
--- a/README.md
+++ b/README.md
@@ -290,6 +290,12 @@ Please note that this project is released with a [Code of Conduct](CODE_OF_CONDU
 - [![twitter-alt][twitter-img]](https://twitter.com/Dmytro_Litvinov)
   [![github-alt][github-img]](https://github.com/DmytroLitvinov)
 
+### Dmytro Grendach
+- DevOps engineer from Zhdany, Ukraine
+- Interested in Python, Golang
+- [![twitter-alt][twitter-img]](https://twitter.com/dmytrogrendach)
+  [![github-alt][github-img]](https://github.com/grendach)
+
 ### duongoku
 - I'm a student and I'm in last year of highschool.
 - I'm interested in competitive programming, physics, calculus and tech stuff.
diff --git a/code/golang/gocalc/gocalc.go b/code/golang/gocalc/gocalc.go
new file mode 100644
index 0000000..e7fb335
--- /dev/null
+++ b/code/golang/gocalc/gocalc.go
@@ -0,0 +1,31 @@
+package main
+
+import (
+	"fmt"
+)
+
+var num1 int64
+var num2 int64
+var action string
+
+func main() {
+	fmt.Println("Enter firs number:")
+	fmt.Scan(&num1)
+	fmt.Println("Enter second number:")
+	fmt.Scan(&num2)
+	fmt.Println("Enter operation('+', '-', '*' or '/'):")
+	fmt.Scan(&action)
+
+	if action == "+" {
+		fmt.Printf("%v + %v = %v\n", num1, num2, num1+num2)
+	}
+	if action == "-" {
+		fmt.Printf(" %v - %v = %v\n", num1, num2, num1-num2)
+	}
+	if action == "*" {
+		fmt.Printf(" %v * %v = %v\n", num1, num2, num1*num2)
+	}
+	if action == "/" {
+		fmt.Printf(" %v / %v = %v\n", num1, num2, num1/num2)
+	}
+}
diff --git a/code/golang/read_input.go b/code/golang/read_input.go
deleted file mode 100644
index f026659..0000000
--- a/code/golang/read_input.go
+++ /dev/null
@@ -1,12 +0,0 @@
-package main
-
-import (
-	"fmt"
-)
-
-func main() {
-	fmt.Println("Hi! Please enter your name...")
-	var inpt string
-	fmt.Scan(&inpt)
-	fmt.Printf("Hello %s, welcome on Hacktoberfest!\n", inpt)
-}