Ids:=[ [ 227, 228 ], [ 258, 260, 261 ], [ 845, 846 ], [ 851, 852 ], [ 857, 858 ], [ 909, 910 ], [ 994, 995 ], 
  [ 1127, 1128 ], [ 1129, 1130 ], [ 1599, 1600 ], [ 1608, 1610 ], [ 1609, 1611 ], [ 1614, 1617 ], [ 1615, 1616 ], 
  [ 1618, 1620, 1622 ], [ 1619, 1621, 1623 ], [ 1662, 1664 ], [ 1663, 1665 ], [ 1666, 1668 ], [ 1667, 1669 ], 
  [ 1678, 1679, 1680, 1681 ], [ 1682, 1684 ], [ 1683, 1685 ], [ 1720, 1721 ], [ 1726, 1727 ], [ 1728, 1729 ], 
  [ 1730, 1731 ], [ 1732, 1733 ], [ 1734, 1735 ], [ 1736, 1737 ], [ 1739, 1740 ], [ 1741, 1742 ], [ 1750, 1751 ], 
  [ 1756, 1757 ], [ 1758, 1759 ], [ 1760, 1761 ], [ 1762, 1763 ], [ 1764, 1765 ], [ 1766, 1767 ], [ 1770, 1771 ], 
  [ 1778, 1781 ], [ 1779, 1780 ], [ 1784, 1785 ], [ 1786, 1787 ], [ 1791, 1792 ], [ 1862, 1863 ], [ 1922, 1923 ], 
  [ 2484, 2486 ], [ 2488, 2490 ], [ 3354, 3356 ], [ 3355, 3357 ], [ 3599, 3600 ], [ 3601, 3602 ], [ 3629, 3630 ], 
  [ 3631, 3632 ], [ 3678, 3679 ], [ 3787, 3788 ], [ 4136, 4137 ], [ 4154, 4157 ], [ 4155, 4158 ], [ 4156, 4159 ], 
  [ 4287, 4288 ], [ 4335, 4336 ], [ 4529, 4533 ], [ 4530, 4534 ], [ 4531, 4535 ], [ 4532, 4536 ], [ 5014, 5015 ], 
  [ 5451, 5452 ], [ 10819, 10821 ], [ 14038, 14041 ], [ 14896, 14898 ], [ 16269, 16273 ], [ 46144, 46145 ], 
  [ 47511, 47587 ] ];