diff --git a/main.py b/main.py
index 0a3fa23..8036058 100644
--- a/main.py
+++ b/main.py
@@ -58,6 +58,15 @@ func_output = []
 
 for e in menu.extension(['meal',]):
     func_output.append(e)
+    
+def fittnes_f(sol):
+    output = 0
+    if sol in menu.extension([sol],):
+        output = 0.5
+    #output = np.sum(sol * func_input)
+    r_out = 1
+    fitness = 1.0 / np.abs(output - r_out)
+    return fitness
 
 ####
 class Tile: