diff --git a/main.v b/main.v
index 5d30b12..03207eb 100644
--- a/main.v
+++ b/main.v
@@ -2,16 +2,16 @@ module main
 
 import os
 
-fn read_stdin() string {
+fn read_stdin() []string {
 	  mut line := ''
-	  mut inputstr := ''
+	  mut inputstr := []string{}
 	  for {
 		    line = os.get_line()
 		    if line.len == 0 && os.stdin().eof() {
 			      break
 		    }
 		    line = line.trim_space()
-		    inputstr += line
+		    inputstr << line
 	  }
 	  return inputstr
 }