Ive probly got it completely wrong and just wasted almost an hour trying to work it out but, here goes all the same
1004, 1006, 1012, 1016, 1018, 1022, 1024, 1028, 1034, 1036, 1042, 1046, 1048, 1052, 1054, 1058, 1064, 1066, 1072, 1076, 1078, 1082, 1084, 1088, 1094, 1096, 1102, 1104, 1106, 1112, 1116, 1118, 1122, 1124, 1128, 1134, 1136, 1142, 1146, 1148, 1152, 1154, 1158, 1164, 1166, 1172, 1176, 1178, 1182, 1184, 1188, 1194, 1196, 1202, 1204, 1206, 1212, 1216, 1218, 1222, 1224, 1228, 1234, 1236, 1242, 1246, 1248, 1252, 1254, 1258, 1264, 1266, 1272, 1276, 1278, 1282, 1284, 1288, 1294, 1296, 1302, 1304, 1306, 1312, 1316, 1318, 1322, 1324, 1328, 1334, 1336, 1342, 1346, 1348, 1352, 1354, 1358, 1364, 1366, 1372, 1376, 1378, 1382, 1384, 1388, 1394, 1396, 1402, 1404, 1406, 1412, 1416, 1418, 1422, 1424, 1428, 1434, 1436, 1442, 1446, 1448, 1452, 1454, 1458, 1464, 1466, 1472, 1476, 1478, 1482, 1484, 1488, 1494, 1496, 1502, 1504, 1506, 1512, 1516, 1518, 1522, 1524, 1528, 1534, 1536, 1542, 1546, 1548, 1552, 1554, 1558, 1564, 1566, 1572, 1576, 1578, 1582, 1584, 1588, 1594, 1596, 1602, 1604, 1606, 1612, 1616, 1618, 1622, 1624, 1628, 1634, 1636, 1642, 1646, 1648, 1652, 1654, 1658, 1664, 1666, 1672, 1676, 1678, 1682, 1684, 1688, 1694, 1696, 1702, 1704, 1706, 1712, 1716, 1718, 1722, 1724, 1728, 1734, 1736, 1742, 1746, 1748, 1752, 1754, 1758, 1764, 1766, 1772, 1776, 1778, 1782, 1784, 1788, 1794, 1796, 1802, 1804, 1806, 1812, 1816, 1818, 1822, 1824, 1828, 1834, 1836, 1842, 1846, 1848, 1852, 1854, 1858, 1864, 1866, 1872, 1876, 1878, 1882, 1884, 1888, 1894, 1896, 1902, 1904, 1906, 1912, 1916, 1918, 1922, 1924, 1928, 1934, 1936, 1942, 1946, 1948, 1952, 1954, 1958, 1964, 1966, 1972, 1976, 1978, 1982, 1984, 1988, 1994, 1996