diff --git a/day1/one-liner.sh b/day1/one-liner.sh
new file mode 100644
index 0000000..3854e98
--- /dev/null
+++ b/day1/one-liner.sh
@@ -0,0 +1,2 @@
+cat input | tr '\n' '+' | sed 's/++/\n/' | bc | sort -n | tail -n 3
+# sum the top three with a calculator :)