diff --git a/exo2.py b/exo2.py
index cd9ac48..f48480b 100644
--- a/exo2.py
+++ b/exo2.py
@@ -1,5 +1,16 @@
+import sys
+
+
 def main():
-    pass
+    lines = []
+    for line in sys.stdin:
+        lines.append(int(line.rstrip("\n")))
+
+    smallest = min(lines)
+    dropped = 0
+    for line in lines:
+        dropped += line - smallest
+    print(dropped)
 
 
 if __name__ == "__main__":