diff --git a/LibreOJ/6828/6828.cpp b/LibreOJ/6828/6828.cpp
new file mode 100644
index 00000000..b3586e40
--- /dev/null
+++ b/LibreOJ/6828/6828.cpp
@@ -0,0 +1,14 @@
+#include <iostream>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cout << "FJOI" << endl;
+
+    return 0;
+}
diff --git a/LibreOJ/6828/data/1.ans b/LibreOJ/6828/data/1.ans
new file mode 100644
index 00000000..185d5e95
--- /dev/null
+++ b/LibreOJ/6828/data/1.ans
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a0422230b0bd21f6f53e4b22888b14682dc5c39e01d8fa0817754208bece6de6
+size 4
diff --git a/LibreOJ/6828/data/1.in b/LibreOJ/6828/data/1.in
new file mode 100644
index 00000000..5cfe6f20
--- /dev/null
+++ b/LibreOJ/6828/data/1.in
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3fa607f22cf20913dc9e4d7514b64d836a2d0b7fc487ce120917dfe4db9a663f
+size 11