diff --git a/Luogu/T228731/T228731.cpp b/Luogu/T228731/T228731.cpp
new file mode 100644
index 00000000..95b94e23
--- /dev/null
+++ b/Luogu/T228731/T228731.cpp
@@ -0,0 +1,22 @@
+#include <iostream>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+int t;
+long long k, n, x;
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin >> t;
+    while (t--) {
+        x = 0;
+        cin >> k >> n;
+        for (int i = 1; i <= k; i++) {
+            x = x * 10 + 9;
+        }
+        cout << (n % x == 0 ? "aya" : "baka") << endl;
+    }
+    return 0;
+}