diff --git a/flax/subs/front_c b/flax/subs/front_c
new file mode 100644
--- /dev/null
+++ b/flax/subs/front_c
@@ -0,0 +1,5 @@
+diag : 0.325
+f3 : 1
+f4 : 1
+main-c1 : 0.495
+main-c3 : 0.57