diff --git a/main.py b/main.py
index 4c0c135f61696bcf42c375ca5ab62aa5b105afc8..5297b44a245bfb603b0d0ca81c0ee35b9f9e1e59 100644
--- a/main.py
+++ b/main.py
@@ -1 +1,59 @@
-print('欢迎来到 InsCode')
\ No newline at end of file
+num_list = {}
+
+n_list = {}
+
+
+
+index = 0
+
+n = 0
+
+
+
+for i in range(4, 10):
+
+    for j in range(4, 10):
+
+        for k in range(4, 10):
+
+            for a in range(4, 10):
+
+                if i != j and i != k and i != a and j != k and j != a and k != a:
+
+                    num_list[index] = i * 1000 + j * 100 + k * 10 + a
+
+                    index = index + 1
+
+
+
+for m in num_list:
+
+    x = num_list[m]
+
+    for z in range(2, x):
+
+        if x % z == 0:
+
+            break
+
+    else:
+
+        n_list[n] = x
+
+        n = n + 1
+
+
+
+print("所有组合的数是 %s" % num_list)
+
+
+
+print("共有 %d 个" % len(num_list))
+
+
+
+print("所有质数是 %s" % n_list)
+
+
+
+print("共有 %d 个" % len(n_list))
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