diff --git a/2017/02/testinput.txt b/2017/02/test_input.txt
similarity index 100%
rename from 2017/02/testinput.txt
rename to 2017/02/test_input.txt
diff --git a/2018/01/testinput.txt b/2018/01/test_input.txt
similarity index 100%
rename from 2018/01/testinput.txt
rename to 2018/01/test_input.txt