added c like push_back e pop_back
diff --git a/SliceTricks.md b/SliceTricks.md
index 4b56cc7..e978b87 100644
--- a/SliceTricks.md
+++ b/SliceTricks.md
@@ -89,11 +89,21 @@
 x, a = a[len(a)-1], a[:len(a)-1]
 ```
 
+#### Pop Back
+```go
+x, a = a[0], a[1:]
+```
+
 #### Push
 ```go
 a = append(a, x)
 ```
 
+#### Push Back
+```go
+a = append([]typeOfA{ x }, a...)
+```
+
 #### Shift
 ```go
 x, a := a[0], a[1:]