diff --git a/hidden-cubic-numbers/find_cubic_numbers.js b/hidden-cubic-numbers/find_cubic_numbers.js
new file mode 100644
index 0000000..de27f30
--- /dev/null
+++ b/hidden-cubic-numbers/find_cubic_numbers.js
@@ -0,0 +1,13 @@
+// cubic numbers
+
+const res = [];
+for (let i = 0; i < 1e3; ++i) {
+  const str = ('000' + i).slice(-3);
+  if (i === str.split``.reduce((a, b) => a + b**3, 0)) {
+    res.push(str);
+  }
+}
+
+console.log(res);
+
+// [ '000', '001', '153', '370', '371', '407' ]
diff --git a/hidden-cubic-numbers/index.js b/hidden-cubic-numbers/index.js
new file mode 100644
index 0000000..066053a
--- /dev/null
+++ b/hidden-cubic-numbers/index.js
@@ -0,0 +1,10 @@
+// https://www.codewars.com/kata/hidden-cubic-numbers
+
+function isSumOfCubes(s) {
+  const cns = ['0', '1', '153', '370', '371', '407'];
+  const n = s.match(/[0-9]+/g) || [];
+  const nr = n.reduce((a, b) => [...a, ...b.match(/[0-9]{1,3}/g)], []).map(n=>(+n)+'');
+  const f = nr.filter(n => cns.indexOf((+n)+'') !== -1);
+  if (!f.length) return 'Unlucky';
+  return `${f.join` `} ${f.reduce((a,b) => +b + a, 0)} Lucky`;
+}