diff --git a/fermi b/fermi
deleted file mode 100755
index 1bb0e9f..0000000
Binary files a/fermi and /dev/null differ
diff --git a/mixture.fermi b/mixture.fermi
deleted file mode 100644
index 8519b28..0000000
--- a/mixture.fermi
+++ /dev/null
@@ -1,9 +0,0 @@
-1 100
-=. x
-
-2K 200K
-=. y
-
-mx x 40% y 60%
-stats
-exit
diff --git a/time-to-botec.fermi b/time-to-botec.fermi
new file mode 100644
index 0000000..b89e779
--- /dev/null
+++ b/time-to-botec.fermi
@@ -0,0 +1,17 @@
+0
+=. a
+
+1
+=. b 
+
+1 3
+=. c
+
+2 10
+=. d
+
+mx a 60% b 20% c 10% d 10%
+
+stats
+
+exit