ch-garcia
diff --git a/‎30-days-pandas/big-countries.py
+5 b/‎30-days-pandas/big-countries.py
+5
diff --git a/‎introduction-pandas/display-first-three-rows.py renamed to ‎introduction-pandas/2879-display-first-rows.py b/‎introduction-pandas/display-first-three-rows.py renamed to ‎introduction-pandas/2879-display-first-rows.py
@@ -0,0 +1,5 @@
+import pandas as pd
+
+def big_countries(world: pd.DataFrame) -> pd.DataFrame:
+    df = world[(world["area"] >= 3000000) | (world["population"] >= 25000000)]
+    return df[["name","population","area"]]