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diff --git a/train/algebraic-stack/algebraic_stack_train_0001-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/algebraic-stack/algebraic_stack_train_0001-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..11f1f1889ce1b5f01e72f649f410c6d36b5d7230
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diff --git a/train/algebraic-stack/algebraic_stack_train_0004-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/algebraic-stack/algebraic_stack_train_0004-tokenized-chunked-1024-512-128-backfill-nodups/index.json
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\ No newline at end of file
diff --git a/train/algebraic-stack/algebraic_stack_train_0004-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/algebraic-stack/algebraic_stack_train_0004-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..19ae76b1207fc5887d68a7144e46e6c118841711
--- /dev/null
+++ b/train/algebraic-stack/algebraic_stack_train_0004-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 144750690,
+  "num_truncated_tokens": 144508133
+}
\ No newline at end of file
diff --git a/train/algebraic-stack/algebraic_stack_train_0011-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/algebraic-stack/algebraic_stack_train_0011-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..6778a4478fd0f326d6eff375123b8557e54fd60a
--- /dev/null
+++ b/train/algebraic-stack/algebraic_stack_train_0011-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 622392588,
+  "num_truncated_tokens": 621562028
+}
\ No newline at end of file
diff --git a/train/algebraic-stack/algebraic_stack_train_0014-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/algebraic-stack/algebraic_stack_train_0014-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
index 0000000000000000000000000000000000000000..a3476ed6fc9c13130e8ba01e27a0ab7ab5d83c8a
--- /dev/null
+++ b/train/algebraic-stack/algebraic_stack_train_0014-tokenized-chunked-1024-512-128-backfill-nodups/index.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/train/algebraic-stack/algebraic_stack_train_0014-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/algebraic-stack/algebraic_stack_train_0014-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..bb89b316cc68c1399c58380a7d06ea986ca2d9ab
--- /dev/null
+++ b/train/algebraic-stack/algebraic_stack_train_0014-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 1353852722,
+  "num_truncated_tokens": 1351593775
+}
\ No newline at end of file
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diff --git a/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_83817-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_83817-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
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diff --git a/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_83817-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_83817-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
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diff --git a/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_86367-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_86367-tokenized-chunked-1024-512-128-backfill-nodups/index.json
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diff --git a/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_86367-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_86367-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
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diff --git a/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_86547-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_86547-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
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diff --git a/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_95642-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_95642-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
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diff --git a/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_95642-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_95642-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
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