diff --git a/.gitignore b/.gitignore
index 68bc17f..bb4b5a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+.idea
+
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..79e2e92
--- /dev/null
+++ b/main.py
@@ -0,0 +1,17 @@
+import random
+from collections import defaultdict
+
+n = 55
+seq_length = 7
+match_times = 7
+
+sequence_count = defaultdict(int)
+
+while True:
+    sequence = random.sample(range(1, n + 1), seq_length)
+    sequence.sort()
+    seq = tuple(sequence)
+    sequence_count[seq] += 1
+    if sequence_count[seq] == match_times:
+        print(seq)
+        break