diff --git a/_jehui/6137.py b/_jehui/6137.py
new file mode 100644
index 00000000..dc69f591
--- /dev/null
+++ b/_jehui/6137.py
@@ -0,0 +1,50 @@
+N = int(input())
+result = []
+sen = []
+for _ in range(N):
+    sen.append(input())
+start = 0
+end = -1
+check = 0
+while True:
+    if (start-N) == end:
+        result.append(sen[start])
+        check += 1
+        break
+
+    if sen[start] > sen[end]:
+        result.append(sen[end])
+        check += 1
+        end -= 1
+    elif sen[start] < sen[end]:
+        result.append(sen[start])
+        check += 1
+        start += 1
+    else:
+        tmp_start = start
+        tmp_end = end
+        no_problem = False
+        while sen[tmp_start] == sen[tmp_end]:
+            tmp_start += 1
+            tmp_end -= 1
+            if tmp_start >= (tmp_end+N):
+                no_problem = True
+                break
+        if no_problem:
+            result.append(sen[start])
+            check += 1
+            start += 1
+        else:
+            if sen[tmp_start] > sen[tmp_end]:
+                result.append(sen[end])
+                check += 1
+                end -= 1
+            elif sen[tmp_start] < sen[tmp_end]:
+                result.append(sen[start])
+                check += 1
+                start += 1
+
+    if check % 80 == 0:
+        result.append("\n")
+        check = 0
+print("".join(result))
\ No newline at end of file