restructure zeta/** to storage/zeta/**

storage/zeta/py/completed/1193.py

@@ -0,0 +1,9 @@
+S = lambda n: n*(n+1)//2
+N = int(input())
+nor = round((2*N)**.5)
+t = N - S(nor-1)
+k = S(nor) - S(nor-1) 
+if nor % 2:
+    print("%d/%d"%(k-t+1, t))
+else:
+    print("%d/%d"%(t, k-t+1))