diff --git a/atcoder/abc370a_raise_both_hands.cpp b/atcoder/abc370a_raise_both_hands.cpp
new file mode 100644
index 0000000..baafba0
--- /dev/null
+++ b/atcoder/abc370a_raise_both_hands.cpp
@@ -0,0 +1,21 @@
+// Vicfred
+// https://atcoder.jp/contests/abc370/tasks/abc370_a
+// implementation
+#include <iostream>
+
+using namespace std;
+
+int main() {
+  int L, R;
+  cin >> L >> R;
+  if((L ^ R) == 1) {
+    if(L == 1) {
+      cout << "Yes" << endl;
+    } else {
+      cout << "No" << endl;
+    }
+  } else {
+    cout << "Invalid" << endl;
+  }
+  return 0;
+}