1 files changed, 25 insertions, 0 deletions
diff --git a/challenge-123/abigail/python/ch-2.py b/challenge-123/abigail/python/ch-2.py
new file mode 100644
index 0000000000..e61a2cc0c5
--- /dev/null
+++ b/challenge-123/abigail/python/ch-2.py
@@ -0,0 +1,25 @@
+#!/opt/local/bin/python
+
+#
+# See ../README.md
+#
+
+#
+# Run as: python ch-2.py < input-file
+#
+
+import fileinput
+
+for line in fileinput . input ():
+    [x1, y1, x2, y2, x3, y3, x4, y4] = \
+         map (lambda x: int (x), line . split (' '))
+    if (x1 - x2) ** 2 + (y1 - y2) ** 2 ==   \
+       (x2 - x3) ** 2 + (y2 - y3) ** 2 ==   \
+       (x3 - x4) ** 2 + (y3 - y4) ** 2 ==   \
+       (x4 - x1) ** 2 + (y4 - y1) ** 2 and  \
+       (x1 - x3) ** 2 + (y1 - y3) ** 2 ==   \
+       (x2 - x4) ** 2 + (y2 - y4) ** 2:
+        print (1)
+    else:
+        print (0)
+