diff --git a/preparations.sh b/preparations.sh
index fda0db1..4a26de3 100755
--- a/preparations.sh
+++ b/preparations.sh
@@ -9,7 +9,8 @@ sed 1d who_suicide_statistics.csv | shuf > data.shuf
 # Ilosc wierszy 
 NUMROWS=$(cat data.shuf | wc -l)
 echo "Initial number of rows ${NUMROWS}"
-DELETE=$((NUMROWS - $1))
+CUTOFF=$1
+DELETE=$((NUMROWS - CUTOFF))
 echo "Cutting $1 rows"
 tail -n $DELETE data.shuf > data.shuf.cut