diff --git a/Lec4/go.mod b/Lec4/go.mod
new file mode 100644
index 0000000..a692304
--- /dev/null
+++ b/Lec4/go.mod
@@ -0,0 +1,3 @@
+module main.go
+
+go 1.24.4
diff --git a/Lec4/main.go b/Lec4/main.go
new file mode 100644
index 0000000..cc0775d
--- /dev/null
+++ b/Lec4/main.go
@@ -0,0 +1,15 @@
+package main
+
+import (
+	"fmt"
+	"unicode/utf8"
+	"unsafe"
+)
+
+
+func main() {
+	var kek string = "Федя"
+	fmt.Printf("Length of %s is: %d\n",kek,len(kek))
+	fmt.Printf("Length in chars: %d\n",utf8.RuneCountInString(kek))
+	fmt.Printf("Type %T size of %d bytes\n",kek,unsafe.Sizeof(kek))
+}
\ No newline at end of file
diff --git a/Lec5/go.mod b/Lec5/go.mod
new file mode 100644
index 0000000..a692304
--- /dev/null
+++ b/Lec5/go.mod
@@ -0,0 +1,3 @@
+module main.go
+
+go 1.24.4
diff --git a/Lec5/main.go b/Lec5/main.go
new file mode 100644
index 0000000..201ef12
--- /dev/null
+++ b/Lec5/main.go
@@ -0,0 +1,17 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+)
+
+
+func main() {
+	var word1 string
+	fmt.Scan(&word1)
+	if strings.Contains(word1,"чат") {
+		fmt.Println("THIS IS BOT")
+		return
+	} 
+	fmt.Println("This is not a bot")
+}
diff --git a/pkg/mod/cache/lock b/pkg/mod/cache/lock
new file mode 100644
index 0000000..e69de29