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diff --git a/train/tulu_flan/tulu_flan_0053-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/tulu_flan/tulu_flan_0053-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
index 0000000000000000000000000000000000000000..3de91425eb4a192e507a83039f89548229d360cc
--- /dev/null
+++ b/train/tulu_flan/tulu_flan_0053-tokenized-chunked-1024-512-128-backfill-nodups/index.json
@@ -0,0 +1 @@
+{"shards": [{"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00000.mds", "bytes": 67107620, "hashes": {}}, "samples": 49358, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00000.mds.zstd", "bytes": 43741620, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00001.mds", "bytes": 67107955, "hashes": {}}, "samples": 49406, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00001.mds.zstd", "bytes": 43746422, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00002.mds", "bytes": 67107170, "hashes": {}}, "samples": 49403, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00002.mds.zstd", "bytes": 43800750, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00003.mds", "bytes": 67108618, "hashes": {}}, "samples": 49349, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00003.mds.zstd", "bytes": 43757542, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00004.mds", "bytes": 67107884, "hashes": {}}, "samples": 49299, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00004.mds.zstd", "bytes": 43794714, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00005.mds", "bytes": 62274890, "hashes": {}}, "samples": 45790, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00005.mds.zstd", "bytes": 40634421, "hashes": {}}}], "version": 2}
\ No newline at end of file
diff --git a/train/tulu_flan/tulu_flan_0053-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/tulu_flan/tulu_flan_0053-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..f788a00835116d513ef691b6550d3c38c566fbf9
--- /dev/null
+++ b/train/tulu_flan/tulu_flan_0053-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 192041420,
+  "num_truncated_tokens": 192015171
+}
\ No newline at end of file