Block_id, x_coord, y_coord, length
1, 100, 300, 50
2, 400, 600, 50
3, 460, 525, 50
4, 600, 400, 50
5, 800, 450, 50
6, 150, 15, 50
7, 185, 75, 50
8, 625, 60, 50
9, 850, 80, 50