diff --git a/hamazaki1990/main.py b/hamazaki1990/main.py
index 3f1d5eb..44ae805 100644
--- a/hamazaki1990/main.py
+++ b/hamazaki1990/main.py
@@ -1,7 +1,5 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
-import random
-from individual import Individual
 from population import Population
 
 
@@ -16,16 +14,45 @@ def get_heterogeneity(Population):
 
 
 def simulate_fixwf(Population):
-    cnt = 1
+    cnt = 0
     while get_heterogeneity(Population):
-        Population = Population.next_genwf()
+        Population.next_genwf()
+        Population.print_ids()
         cnt += 1
-        print(Population._inds)
     else:
         print(cnt)
 
 
+def simulate_fixmo(Population):
+    cnt = 0
+    while get_heterogeneity(Population):
+        Population.next_genmo()
+        Population.print_ids()
+        cnt += 1
+    else:
+        print(cnt)
+
+
+p = Population(5)
+p.print_ids()
+print(get_heterogeneity(p))
+cnt = 1
+while get_heterogeneity(p):
+    p.next_genwf()
+    p.print_ids()
+    print(get_heterogeneity(p))
+    print(cnt)
+    cnt += 1
+winner = p._inds[0]
+print(winner.get_id())
+
 p1 = Population(5)
 p1.print_ids()
 print(get_heterogeneity(p1))
 simulate_fixwf(p1)
+
+
+p2 = Population(5)
+p2.print_ids()
+print(get_heterogeneity(p2))
+simulate_fixmo(p2)