diff --git a/zeta_python/completed/15725.py b/zeta_python/completed/15725.py
new file mode 100644
index 0000000..40fbe39
--- /dev/null
+++ b/zeta_python/completed/15725.py
@@ -0,0 +1 @@
+print((lambda x: x[0] if len(x) > 1 else 0)(list(map(lambda x: 1 if x == '' else -1 if x == '-' else int(x), input().split('x')))))
\ No newline at end of file