auto save

1.py

+a=int(input())
+h=0
+m=0
+s=0
+h=int((a/(1000*60*60))%24)
+m=int((a/(1000*60)%60))
+s=int((a/1000)%60)
+if h<10:
+    h="0"+str(h)
+else:
+    h=str(h)
+if m<10:
+    m="0"+str(m)
+else:
+    m=str(m)
+if s<10:
+    s="0"+str(s)
+else:
+    s=str(s)
+print(h+":"+m+":"+s)