diff --git a/shatteredcake.py b/shatteredcake.py
new file mode 100644
index 0000000..c888a42
--- /dev/null
+++ b/shatteredcake.py
@@ -0,0 +1,9 @@
+w = int(input())
+n = int(input())
+
+s = 0
+for _ in range(n):
+    x, y = map(int, input().split())
+    s += x * y
+
+print(s // w)