diff --git a/CodeForces python/Young physicist.py b/CodeForces python/Young physicist.py
index a5c7fbb..5b88309 100644
--- a/CodeForces python/Young physicist.py	
+++ b/CodeForces python/Young physicist.py	
@@ -1,12 +1,12 @@
 n=int(input())
-sx=sy=sz=0
+sx = sy = sz = 0
 for i in range(n):
-    x,y,z=[int(v) for v in input().split()]
-    sx+=x
-    sy+=y
-    sz+=z
+    x,y,z = [int(v) for v in input().split()]
+    sx += x
+    sy += y
+    sz += z
     
-if sx==0 and sy==0 and sz==0:
+if sx == sy == sz == 0:
     print("YES")
 else:
     print('NO')