diff --git a/lib/io-extra.jl b/lib/io-extra.jl
index e69de29..3fb12ae 100644
--- a/lib/io-extra.jl
+++ b/lib/io-extra.jl
@@ -0,0 +1,4 @@
+function input(prompt::String="")::String
+           print(prompt)
+           return chomp(readline())
+end
\ No newline at end of file