Fixed train 100K: Quirke enrichment, seed=42, natural hard ratio

fixed_train/train_100K_seed42_meta.json

@@ -3,26 +3,32 @@
   "seed": 42,
   "n_digits": 6,
   "ops": "add_sub",
-  "hard_ratio": 0.1,
   "enrichment": "quirke_appendix_d",
+  "hard_ratio": "natural",
   "op_counts": {
-    "add": 54851,
-    "sub": 45149
+    "add": 50054,
+    "sub": 49946
   },
   "split_counts": {
-    "add_has_UC": 20544,
-    "add_C5": 5815,
-    "add_C2": 8641,
-    "add_C3": 8363,
-    "sub_has_UB": 21445,
-    "sub_MD_only": 10112,
-    "sub_has_UD": 13592,
-    "add_has_SS": 14885,
-    "add_C0": 15057,
-    "add_has_US": 19250,
-    "add_C4": 7256,
-    "add_C7": 4315,
-    "add_C6": 5404,
-    "add_SA_only": 172
+    "add_C0": 5066,
+    "add_C2": 9611,
+    "add_C3": 9576,
+    "add_C4": 8133,
+    "add_C5": 6433,
+    "add_C6": 6206,
+    "add_C7": 5029,
+    "add_SA_only": 236,
+    "add_has_SS": 4830,
+    "add_has_UC": 25078,
+    "add_has_US": 19910,
+    "sub_B0": 10001,
+    "sub_B2": 11811,
+    "sub_B3": 9229,
+    "sub_B4": 7927,
+    "sub_B5": 6664,
+    "sub_B6": 4314,
+    "sub_MD_only": 10001,
+    "sub_has_UB": 25919,
+    "sub_has_UD": 14026
   }
 }