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diff --git a/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_84278-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_84278-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
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\ No newline at end of file
diff --git a/train/stackexchange/stackexchange_0008-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/stackexchange/stackexchange_0008-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..582ee22ad37420db1857594f6f2b9814bb881418
--- /dev/null
+++ b/train/stackexchange/stackexchange_0008-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 740321972,
+  "num_truncated_tokens": 740145000
+}
\ No newline at end of file
diff --git a/train/stackexchange/stackexchange_0017-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/stackexchange/stackexchange_0017-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
index 0000000000000000000000000000000000000000..818117aa6d3ac95e677f3fe0c21b145232ffb2ec
--- /dev/null
+++ b/train/stackexchange/stackexchange_0017-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/stackexchange/stackexchange_0017-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/stackexchange/stackexchange_0017-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..ce88c8f3a9162b61db747e00b6b339066b6c74be
--- /dev/null
+++ b/train/stackexchange/stackexchange_0017-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 789002052,
+  "num_truncated_tokens": 788774358
+}
\ No newline at end of file