diff --git a/swea/1209.py b/swea/1209.py
new file mode 100644
index 0000000..37507cf
--- /dev/null
+++ b/swea/1209.py
@@ -0,0 +1,26 @@
+t=10
+
+for _ in range(t):
+    tc=int(input())
+    arr=[list(map(int,input().split())) for _ in range(100)]
+
+    sum1=[0 for _ in range(100)]
+    sum2=[0 for _ in range(100)]
+    sumlr=0
+    sumrl=0
+    for i in range(100):
+        for j in range(100):
+            v=arr[i][j]
+            sum1[i]+=v
+            sum2[j]+=v
+
+            if i==j:
+                sumlr+=v
+            if i-j==100-1:
+                sumrl+=v
+
+    sum1.sort()
+    sum2.sort()
+
+    mx=max(sum1[-1],sum2[-1],sumlr,sumrl)
+    print("#"+str(tc),mx)