diff --git a/problem/P3156/P3156.cpp b/problem/P3156/P3156.cpp
new file mode 100644
index 00000000..45100f7c
--- /dev/null
+++ b/problem/P3156/P3156.cpp
@@ -0,0 +1,18 @@
+// R38858817
+
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n, m, a[10000005], q;
+    cin >> n >> m;
+    for (int i = 0; i < n; i++) {
+        cin >> a[i];
+    }
+    for (int i = 0; i < m; i++) {
+        cin >> q;
+        cout << a[q-1] << endl;
+    }
+    return 0;
+}