diff --git a/type.go b/type.go
new file mode 100644
index 0000000..fa842de
--- /dev/null
+++ b/type.go
@@ -0,0 +1,19 @@
+package main
+
+import "fmt"
+
+type A int64
+type B int64
+
+func main() {
+	var i int64 = 1
+	var a1 A = 1
+	var a2 A = 1
+	var b1 B = 1
+	fmt.Printf("%d %d %d %d %d\n", i, int64(a1), a1, a2, b1)
+	fmt.Printf("a1 == 1: %+v\n", a1 == 1)
+	//fmt.Printf("a1 == i: %+v\n", a1 == i)
+	fmt.Printf("int64(a1) == i: %+v\n", int64(a1) == i)
+	fmt.Printf("a1 == a2: %+v\n", a1 == a2)
+	//fmt.Printf("a1 == b1: %+v\n", a1 == b1)
+}