1 files changed, 31 insertions, 0 deletions
diff --git a/challenge-117/abigail/java/ch-2.java b/challenge-117/abigail/java/ch-2.java
new file mode 100644
index 0000000000..05ebce2e86
--- /dev/null
+++ b/challenge-117/abigail/java/ch-2.java
@@ -0,0 +1,31 @@
+//
+// See ../README.md
+//
+
+//
+// Run as: ln ch-2.java ch2.java; javac ch2.java; java ch2 < input-file
+//
+
+import java.util.*;
+
+
+public class ch2 {
+    static void steps (int x, int y, String path) {
+        if (x == 0 && y == 0) {
+            System . out . println (path);
+        }
+        if (x > 0) {
+            steps (x - 1, y + 1, path + "L");
+            steps (x - 1, y,     path + "R");
+        }
+        if (y > 0) {
+            steps (x,     y - 1, path + "H");
+        }
+    }
+
+    public static void main (String [] args) {
+        Scanner scanner = new Scanner (System . in);
+        int size = scanner . nextInt ();
+        steps (size, 0, "");
+    }
+}