diff --git a/SM2-WWMM-(2).md b/SM2-WWMM-(2).md
index 3d5eaa7..683b3bb 100644
--- a/SM2-WWMM-(2).md
+++ b/SM2-WWMM-(2).md
@@ -294,10 +294,10 @@ $$O = O_3 \ast 2^{192} + O_2 \ast 2^{128} + O_1 \ast 2^{64} + O_0$$
 
 $$O = 2^{256} - 2^{32} \ast 2^{192} - 2^{128} + O_1 \ast 2^{64} + O_0$$  
 
-$O_0=0xFFFFFFFEFFFFFFFF$  
-$O_1=0xFFFFFFFF00000000$  
-$O_2=0x7203DF6B21C6052B$  
-$O_3=0x53BBF40939D54123$  
+$O_3=0xFFFFFFFEFFFFFFFF$  
+$O_2=0xFFFFFFFF00000000$  
+$O_1=0x7203DF6B21C6052B$  
+$O_0=0x53BBF40939D54123$  
 
 ## Order域平方的WWMM约减优化
 假设 $T=a^2$ ：