finish one 6 kyu

Author: sdwh

[6 kyu]Moduli number system.py

@@ -0,0 +1,14 @@
+from functools import reduce
+
+def fromNb2Str(n, modsys):
+    prime = [i for num in modsys for i in range(2,num+1) if num%i == 0]
+    for p in prime:
+        if prime.count(p) > 1:
+            return 'Not applicable'
+    
+    if reduce(lambda x,y:x*y, modsys) < n:
+        return 'Not applicable'
+    return '-' + '--'.join([str(n%num) for num in modsys]) + '-'
+
+print(fromNb2Str(187,[8,7,5,3]))
+print(fromNb2Str(15,[8,6,5,3]))