xl = 350;  yl = 207.90939596728<br>xl = 355;  yl = 207<br>xl = 500;  yl = 186.21020624233<br>xl = 600;  yl = 176.00842021679<br>xl = 1000;  yl = 150.30509018101<br>xl = 1100;  yl = 145.94249420222<br>xl = 1400;  yl = 135.46107926058<br>xl = 1450;  yl = 134<br>xl = 1600;  yl = 124.84473267933<br>xl = 1750; yl = 117.0555112158<br>xl = 1900;  yl = 110.33563747857<br>xl = 2000;  yl = 106.34111674187<br>xl = 2200;  yl = 99.298764540772<br>xl = 2450;  yl = 91.905144032323<br>xl = 2700;  yl = 85.704521475838<br>xl = 3050;  yl = 78.514120865493<br>xl = 3078;  yl = 78<br>xl = 3100;  yl = 77.601653651254<br>xl = 3300;  yl = 74.190981159582<br>xl = 3500;  yl = 71.11810299471<br>xl = 3550;  yl = 70.396568923824<br>