Update add_sub_6digit: add complexity labels + stratified eval

add_sub_6digit/config.json

@@ -2,5 +2,21 @@
   "n_digits": 6,
   "ops": "add_sub",
   "train_size": 500000,
-  "val_size": 10000
+  "val_size": 10000,
+  "eval_size": 961,
+  "complexity_distribution": {
+    "M0": 13859,
+    "M1": 193796,
+    "M2": 38914,
+    "M3": 3135,
+    "M4": 185,
+    "M5": 8,
+    "S0": 25409,
+    "S1": 123667,
+    "S2": 65329,
+    "S3": 23728,
+    "S4": 8305,
+    "S5": 2824,
+    "S6": 841
+  }
 }

add_sub_6digit/eval_stratified.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:032ad27198ebc42b88f11e23303e04902a5bd05e15320f6c6df5797d97dc64aa
+size 29704

add_sub_6digit/train.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:07c428cf383b58755cf9d46267c44e375116785c410d6201ffb559999f1f118c
-size 11843959
+oid sha256:816a757ed8f233534f85bb5fb786e9bbf501c5ece64ac8da90ae0188547d0ae0
+size 12214237

add_sub_6digit/val.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:6212179bb14bb5bdedc30ff71ad10ff79e6202baa0f14cccc74799027d8a8ded
-size 241930
+oid sha256:b73164bf3abccc4b0922b91a340041847dfa1e27c5c4390de46c8344eb8bc378
+size 250062