{
  "description": "The 900 math and 900 code prompts of the student set, as positions (src_index) in the math and code pools that build_data.py derives from DeepMath-103K and Eurus-2-RL-Data. They were selected as prompts whose pass rate under Qwen3-4B (8 samples, temperature 1.0, top-p 0.95, non-thinking chat template) lay in [0.125, 0.875], then a random 900 per domain with seed 42. Those pass rates come from a model outside the paper and are not released, so the selection is published as these ids.",
  "order": "ascending; the student set interleaves math[i], code[i] before the seed-42 shuffle (see build_data.py)",
  "math": [55, 70, 139, 202, 248, 291, 300, 366, 399, 621, 665, 738, 816, 885, 1052, 1061, 1097, 1152, 1298, 1395, 1444, 1557, 1607, 1674, 1748, 1975, 2215, 2228, 2233, 2322, 2368, 2397, 2679, 2750, 2786, 2805, 2875, 2892, 2968, 3025, 3042, 3093, 3221, 3239, 3251, 3260, 3360, 3512, 3547, 3582, 3619, 3688, 4060, 4073, 4145, 4187, 4325, 4369, 4487, 4500, 4503, 4544, 4546, 4627, 4715, 4873, 4892, 4937, 4970, 5110, 5142, 5165, 5189, 5272, 5610, 5616, 5622, 5655, 5678, 5743, 5773, 5820, 5999, 6073, 6077, 6115, 6272, 6294, 6369, 6407, 6504, 6563, 6581, 6605, 6685, 6745, 6788, 6833, 6990, 7127, 7178, 7198, 7314, 7392, 7537, 7604, 7654, 7661, 7675, 7696, 7716, 7743, 7772, 7783, 7812, 7833, 7924, 7941, 7955, 7986, 8102, 8138, 8185, 8257, 8278, 8367, 8392, 8413, 8429, 8501, 8667, 8814, 8817, 8838, 8933, 8959, 8981, 8994, 9012, 9080, 9153, 9164, 9380, 9473, 9512, 9556, 9560, 9681, 9709, 9826, 10088, 10139, 10178, 10189, 10290, 10349, 10380, 10394, 10399, 10420, 10454, 10526, 10777, 10799, 10916, 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47796, 47802, 47824, 47882, 47924, 47939, 47986, 48068, 48158, 48159, 48198, 48344, 48439, 48522, 48528, 48545, 48569, 48673, 48681, 48774, 48822, 48842, 48932, 49100, 49159, 49241, 49264, 49342, 49348, 49375, 49380, 49402, 49436, 49581, 49618, 49620, 49632, 49757, 49835, 49879, 49899, 50043, 50051, 50062, 50083, 50100, 50110, 50154, 50173, 50220, 50285, 50553, 50621, 50818, 50873, 50933, 51031, 51095, 51123, 51198, 51420, 51462, 51464, 51494, 51578, 51594, 51618, 51657, 51665, 51792, 51844, 51850, 51857, 51895, 52023, 52074, 52153, 52179, 52201, 52261, 52353, 52390, 52416, 52446, 52481, 52524, 52740, 52749, 52756, 52769, 52780, 52783, 52808, 52864, 52961, 52994, 53068, 53139, 53205, 53216, 53269, 53279, 53314, 53334, 53354, 53493, 53544, 53578, 53597, 53604, 53631, 53749, 53800, 53815, 53891, 53957, 53983, 54064, 54165, 54431, 54536, 54601, 54640, 54699, 54717, 54746, 54756, 54820, 54839, 54840, 54873, 54954, 55053, 55092, 55124, 55152, 55158, 55162, 55268, 55321, 55387, 55393, 55482, 55484, 55648, 55672, 55730, 55737, 55831, 55845, 56093, 56165, 56175, 56258, 56378, 56392, 56569, 56621, 56813, 56871, 56877, 56933, 56940],
  "code": [56, 85, 155, 185, 227, 230, 248, 400, 430, 465, 488, 542, 564, 575, 600, 614, 628, 656, 751, 781, 800, 806, 843, 875, 925, 945, 985, 1010, 1130, 1144, 1145, 1166, 1182, 1185, 1238, 1282, 1301, 1303, 1304, 1387, 1388, 1470, 1505, 1520, 1546, 1579, 1595, 1604, 1614, 1615, 1636, 1683, 1720, 1747, 1824, 1854, 1863, 1884, 1929, 1939, 1947, 2016, 2017, 2044, 2057, 2071, 2076, 2108, 2160, 2192, 2203, 2251, 2253, 2283, 2306, 2311, 2327, 2350, 2382, 2435, 2455, 2463, 2536, 2546, 2563, 2564, 2578, 2585, 2679, 2773, 2779, 2806, 2815, 2816, 2852, 2859, 2902, 2910, 2948, 2952, 2956, 3019, 3022, 3023, 3087, 3119, 3126, 3148, 3151, 3227, 3284, 3287, 3289, 3297, 3323, 3335, 3344, 3435, 3436, 3440, 3456, 3486, 3488, 3515, 3521, 3612, 3652, 3656, 3659, 3706, 3729, 3767, 3770, 3783, 3803, 3850, 3859, 3869, 3870, 3896, 3903, 3914, 3927, 4029, 4061, 4072, 4078, 4080, 4113, 4118, 4160, 4183, 4206, 4230, 4263, 4272, 4311, 4349, 4355, 4390, 4398, 4399, 4420, 4450, 4475, 4485, 4488, 4534, 4548, 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}