diff --git a/S2OJ/1167/1167.cpp b/S2OJ/1167/1167.cpp
new file mode 100644
index 00000000..4e64e957
--- /dev/null
+++ b/S2OJ/1167/1167.cpp
@@ -0,0 +1,7 @@
+// Compile command: g++ implementer.cpp 1167.cpp -o 1167 -O2 -lm
+
+#include "head.h"
+
+unsigned solv(unsigned a, unsigned b) {
+    return a * b;
+}
diff --git a/S2OJ/1167/head.h b/S2OJ/1167/head.h
new file mode 100644
index 00000000..dcd7b934
--- /dev/null
+++ b/S2OJ/1167/head.h
@@ -0,0 +1 @@
+unsigned int solv(unsigned int, unsigned int);
diff --git a/S2OJ/1167/implementer.cpp b/S2OJ/1167/implementer.cpp
new file mode 100644
index 00000000..9815c20d
--- /dev/null
+++ b/S2OJ/1167/implementer.cpp
@@ -0,0 +1,24 @@
+#include <bits/stdc++.h>
+
+#include "head.h"
+
+static inline unsigned int randnum() {
+    static unsigned int seed = time(nullptr);
+    return seed ^= seed << 5, seed ^= seed >> 7, seed ^= seed << 13;
+}
+
+std::string str = "1145141919810efghkkk";
+
+signed main() {
+    int n;
+    std::cin >> n;
+    unsigned int ps = (randnum() % str.length());
+    if (!ps) ++ps;
+    std::cout << str.substr(0, ps);
+    for (int i = 1; i <= n; ++i) {
+        unsigned int a = randnum(), b = randnum();
+        unsigned int ret = solv(a, b);
+        if (i == 1) std::cout << str.substr(ps) << '\n';
+        std::cout << a * b << ' ' << ret << '\n';
+    }
+}