diff --git a/py/venv/main/Config.py b/py/venv/main/Config.py
index 531afbb..346c8d3 100644
--- a/py/venv/main/Config.py
+++ b/py/venv/main/Config.py
@@ -48,3 +48,26 @@
 D13 = '(B*C*D-(A+E))%10'
 D14 = '(D*E+C-(A*B))%10'
 D15 = '(A*B*C-(D*E))%10'
+
+
+# 公式三
+
+A21 = '(A+B+C+D-E)%10'
+A22 = '(C*D-(A+B+E))%10'
+A23 = '(B*C-(A+D+E))%10'
+A24 = '(D*E+C-(A+B))%10'
+
+B21 = '(A+B+C+D-E)%10'
+B22 = '(B*C*D-(A+E))%10'
+B23 = '(B*C*D-(A+E))%10'
+B24 = '(C*D*E-(A*B))%10'
+
+C21 = '(A+B+C+D-E)%10'
+C22 = '(A*E-(B+C+D))%10'
+C23 = '(A*C*E-(B+D))%10'
+C24 = '(C*D*E-(A*B))%10'
+
+D21 = '(A*B*C-(D+E))%10'
+D22 = '(A-(B+C+D+E))%10'
+D23 = '(A*B*C-(D*E))%10'
+D24 = '(A*B*C-(D+E))%10'