diff --git a/SM4-with-AESENCLAST.md b/SM4-with-AESENCLAST.md
index 2acad48..98d3ed8 100644
--- a/SM4-with-AESENCLAST.md
+++ b/SM4-with-AESENCLAST.md
@@ -25,7 +25,7 @@ sm4_box_aesenclast <-> sm4_box_aesbox_1 <-> sm4_box_aesbox_2 <-> sm4_box_aesbox_
 
 **We note that each affine transform can be constructed from XOR of two 4x8-bit table lookups, which we implement with constant time byte shuffle instructions (each 16-entry table is in a single 128-bit register).**
 
-```
+```golang
 sm4_box_aesenclast
 	y := mm_and_si128(x, const_0f)
 	y = mm_shuffle_epi8(a1l, y)
@@ -91,8 +91,8 @@ sm4_box_aesbox_4
 	} 
 ```
 **How to calculate lookup table from M, C?**
-```
-{Mi+C | i>=0 && i<256}
+```golang
+// {Mi+C | i>=0 && i<256}
 
 // Generate lookup table based on M matrix and C
 func gen_lookup_table(m [8]byte, c byte) {
@@ -113,7 +113,7 @@ func gen_lookup_table(m [8]byte, c byte) {
 }
 ```
 Below python code is more intuitive:
-```
+```python
 from pyfinite import genericmatrix
 
 XOR = lambda x,y:x^y
@@ -203,7 +203,7 @@ Below is sample
 00111100
 ```
 
-```
+```golang
 // Generate matrix based on lookup table
 func gen_matrix(lookup [256]byte) (m [8]byte) {
 	c := lookup[0]
@@ -228,7 +228,7 @@ func gen_matrix(lookup [256]byte) (m [8]byte) {
 }
 ```
 Similar python code:
-```
+```python
 from pyfinite import genericmatrix