diff --git a/scripts/benchmark.sh b/scripts/benchmark.sh
index d9b3e41..e0d0a70 100755
--- a/scripts/benchmark.sh
+++ b/scripts/benchmark.sh
@@ -3,10 +3,13 @@ n=$1
 t=0
 all_t=""
 
-TIMEFORMAT=%U
+mkdir -p out/
+
 printf "%12s\t%12s\n" "seed" "user-time (s)"
+
+TIMEFORMAT=%U
 for i in $(seq 0 9); do
-    t=$( { time bin/hw2.run --gtsp -s $i -n $n > out/gtsp-n${n}-s${i}.log; } 2>&1 )
+    t=$( { time bin/hw2.run --gtsp -s $i -n $n 2>&1 > out/gtsp-n${n}-s${i}.log; } 2>&1 )
     all_t="$all_t $t"
     printf "%12d\t%12.3f\n" $i $t
 done