diff --git a/atcoder/abc371a_jiro.cpp b/atcoder/abc371a_jiro.cpp
new file mode 100644
index 0000000..664734b
--- /dev/null
+++ b/atcoder/abc371a_jiro.cpp
@@ -0,0 +1,22 @@
+// Vicfred
+// https://atcoder.jp/contests/abc371/tasks/abc371_a
+// implementation
+#include <iostream>
+
+using namespace std;
+
+int main() {
+  string Sab, Sac, Sbc;
+  cin >> Sab >> Sac >> Sbc;
+  string brothers = Sab + Sac + Sbc;
+  if (brothers == "><<" or brothers == "<>>") {
+    cout << "A" << endl;
+  }
+  if (brothers == "<<<" or brothers == ">>>") {
+    cout << "B" << endl;
+  }
+  if (brothers == "<<>" or brothers == ">><") {
+    cout << "C" << endl;
+  }
+  return 0;
+}