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

storage/zeta/py/completed/4948.py

@@ -0,0 +1,28 @@
+N = int(input())
+P = []
+last = 1
+while N != 0:
+    if 2*N > last:
+        if last == 1:
+            last = 2
+        for i in range(last, 2*N+1):
+            for p in P:
+                if i % p == 0:
+                    break
+                elif p ** 2 > i:
+                    P.append(i)
+                    break
+            else:
+                P.append(i)
+    c = 0
+    for p in P:
+        if N < p <= 2 * N:
+            c += 1
+        elif p > 2*N:
+            break
+    if last < 2*N:
+        last = 2*N
+
+    print(c)
+
+    N = int(input())