diff --git a/Jenkinsfile b/Jenkinsfile
index cf544e7..50d8c4b 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -37,9 +37,9 @@ node {
         sh '''kaggle datasets download -d aleksandrglotov/car-prices-poland
         unzip -o car-prices-poland.zip
         wc -l Car_Prices_Poland_Kaggle.csv
-        head -n $(($CUTTOFF / 10)) Car_Prices_Poland_Kaggle.csv > cars_test.csv
-        head -n $(($CUTTOFF / 5)) Car_Prices_Poland_Kaggle.csv  | tail $(($CUTTOFF / -10)) > cars_dev.csv
-        head -n $(($CUTTOFF) Car_Prices_Poland_Kaggle.csv  | tail $(($CUTTOFF * (-4 / 5) )) > cars_train.csv'''}
+        head -n 11793 Car_Prices_Poland_Kaggle.csv > cars_test.csv
+        head -n 23586 Car_Prices_Poland_Kaggle.csv  | tail -11793 > cars_dev.csv
+        head -n $((CUTOFF)) Car_Prices_Poland_Kaggle.csv  | tail $((23586 - CUTOFF)) > cars_train.csv'''}
     }
     stage('Save data into artifacts') {
         archiveArtifacts artifacts: '*.csv', followSymlinks: false