Fixed train 10K: Quirke enrichment, seed=42, natural hard ratio

fixed_train/train_10K_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": {
-    "sub": 4544,
-    "add": 5456
+    "add": 4926,
+    "sub": 5074
   },
   "split_counts": {
-    "sub_has_UB": 2378,
-    "sub_has_UD": 1234,
-    "add_has_UC": 2319,
-    "add_C5": 641,
-    "add_C6": 565,
-    "sub_MD_only": 932,
-    "add_C2": 872,
-    "add_has_US": 1760,
-    "add_C4": 739,
-    "add_has_SS": 1363,
-    "add_C0": 1377,
-    "add_C3": 851,
-    "add_C7": 411,
-    "add_SA_only": 14
+    "add_C0": 434,
+    "add_C2": 965,
+    "add_C3": 948,
+    "add_C4": 802,
+    "add_C5": 699,
+    "add_C6": 619,
+    "add_C7": 459,
+    "add_SA_only": 16,
+    "add_has_SS": 418,
+    "add_has_UC": 2470,
+    "add_has_US": 2022,
+    "sub_B0": 1081,
+    "sub_B2": 1141,
+    "sub_B3": 910,
+    "sub_B4": 797,
+    "sub_B5": 651,
+    "sub_B6": 494,
+    "sub_MD_only": 1081,
+    "sub_has_UB": 2546,
+    "sub_has_UD": 1447
   }
 }