diff --git a/problem/P2562/P2562.cpp b/problem/P2562/P2562.cpp
new file mode 100644
index 00000000..6bec7841
--- /dev/null
+++ b/problem/P2562/P2562.cpp
@@ -0,0 +1,20 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+string work(string s) {
+    if (s.find('1') == string::npos) {
+        return "A";
+    }
+    if (s.find('0') == string::npos) {
+        return "B";
+    }
+    return "C" + work(s.substr(0, s.size() / 2)) + work(s.substr(s.size() / 2));
+}
+
+int main() {
+    string s;
+    cin >> s;
+    cout << work(s) << endl;
+    return 0;
+}