--- a
+++ b/img501.txt
@@ -0,0 +1,2 @@
+0 0.6302521008403361 0.36879432624113473 0.16806722689075632 0.41134751773049644
+1 0.3795518207282913 0.4078014184397163 0.1876750700280112 0.5886524822695035