diff -r 97bcf8efe4e0 -r bb6074814a73 pre_solution1/collatz.scala
--- a/pre_solution1/collatz.scala	Fri Nov 06 01:07:26 2020 +0000
+++ b/pre_solution1/collatz.scala	Sat Nov 07 19:13:06 2020 +0000
@@ -42,7 +42,7 @@
 
 
 //for (i <- 130 to 10000) println(s"$i: ${last_odd(i)}")
-for (i <- 1 to 100) println(s"$i: ${collatz(i)}")
+//for (i <- 1 to 100) println(s"$i: ${collatz(i)}")
 
 }