2000
0, 1581, 1581, 0, 0, 0.0, 0.0
1, 1581, 1581, 4, 4, 0.253004427577, 0.253004427577
2, 1581, 1581, 0, 0, 0.0, 0.0
3, 1580, 1580, 0, 0, 0.0, 0.0