diff --git a/2020/OUTPUT b/2020/OUTPUT
index 44ccd8d..37481b1 100644
--- a/2020/OUTPUT
+++ b/2020/OUTPUT
@@ -457,3 +457,17 @@ ex1.bash : res=5966506063747
 ex2.bash res=1714
 	time: 0:02.14 real, 2.05 user, 0.02 sys
 	context-switch:	1146+1, page-faults: 0+605
+
+=========================================
+================= day21 =================
+=========================================
+
++++++++++++++++++ ex1
+ex1.bash: res=2211
+	time: 0:01.72 real, 1.71 user, 0.00 sys
+	context-switch:	9+1, page-faults: 0+1090
+
++++++++++++++++++ ex2
+ex2.bash: res=vv,nlxsmb,rnbhjk,bvnkk,ttxvphb,qmkz,trmzkcfg,jpvz
+	time: 0:01.75 real, 1.74 user, 0.00 sys
+	context-switch:	36+4, page-faults: 0+1388
diff --git a/2020/day21/Makefile b/2020/day21/Makefile
index 62c581b..224acfb 100644
--- a/2020/day21/Makefile
+++ b/2020/day21/Makefile
@@ -20,7 +20,7 @@ ex1:
 	@#$(TIME) ex1-c 2020 < $(INPUT) 2>&1
 
 ex2:
-	@#$(TIME) ex2.bash < $(INPUT) 2>&1
+	@$(TIME) ex2.bash < $(INPUT) 2>&1
 	@#$(TIME) ex1-c 30000000 < $(INPUT) 2>&1
 
 clean:
diff --git a/2020/day21/OUTPUT b/2020/day21/OUTPUT
index b369518..435e18d 100644
--- a/2020/day21/OUTPUT
+++ b/2020/day21/OUTPUT
@@ -1,4 +1,8 @@
 ex1.bash: res=2211
-	time: 0:01.73 real, 1.72 user, 0.00 sys
-	context-switch:	54+1, page-faults: 0+1089
+	time: 0:01.72 real, 1.71 user, 0.00 sys
+	context-switch:	9+1, page-faults: 0+1090
+
+ex2.bash: res=vv,nlxsmb,rnbhjk,bvnkk,ttxvphb,qmkz,trmzkcfg,jpvz
+	time: 0:01.75 real, 1.74 user, 0.00 sys
+	context-switch:	36+4, page-faults: 0+1388