diff --git a/main.cpp b/main.cpp
index 7eebd7d..cc64c2e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -28,9 +28,13 @@ input_data() {
     cin >> in.bin_count;
 
  
-    cerr << "Enter stroke colour:";
+    cerr << "Enter stroke colour without spaces or in code format:";
     cin >> in.stroke;
+    if (in.stroke.find(' ')) {
+        cerr << "bad input";
+    }
     return in;
+
 }
 
 int main()