add cutoff

Jenkinsfile

@@ -13,6 +13,11 @@ pipeline {
             description: 'Kaggle token taken from kaggle.json file, as described in https://github.com/Kaggle/kaggle-api#api-credentials',
             name: 'KAGGLE_KEY'
         )
+	string(
+            defaultValue: '1',
+            description: 'Cutoff lines',
+            name: 'CUTOFF'
+        )
     }
     environment {
         KAGGLE_USERNAME="$params.KAGGLE_USERNAME"
@@ -37,6 +42,7 @@ pipeline {
                 	}
 			sh './download.sh'
 			archiveArtifacts artifacts: 'all_games.csv.dev, all_games.csv.test, all_games.csv.train', followSymlinks: false
+			head -n $CUTOFF all_games.csv.train
 		}
 	}
 	}