diff --git a/utils/random.ts b/utils/random.ts
new file mode 100644
index 0000000..57b0478
--- /dev/null
+++ b/utils/random.ts
@@ -0,0 +1,5 @@
+export function randomInt(fromInclusive: number, toExclusive: number): number {
+  return (
+    Math.floor(Math.random() * (toExclusive - fromInclusive)) + fromInclusive
+  );
+}