VM214:1 Uncaught SyntaxError: Identifier 'x' has already been declared
    at <anonymous>:1:1
    at commonFramework-5fb8a91fbb.js:1
    at vendor-main-66e77022e0.js:52
    at c.next (vendor-main-66e77022e0.js:53)
    at c.b.onNext (vendor-main-66e77022e0.js:52)
    at c.<anonymous> (vendor-main-66e77022e0.js:52)
    at b.c.next (vendor-main-66e77022e0.js:56)
    at b.onNext (vendor-main-66e77022e0.js:52)
    at c.next (vendor-main-66e77022e0.js:54)
    at c.b.onNext (vendor-main-66e77022e0.js:52)
(anonymous) @ VM214:1
(anonymous) @ commonFramework-5fb8a91fbb.js:1
(anonymous) @ vendor-main-66e77022e0.js:52
c.next @ vendor-main-66e77022e0.js:53
b.onNext @ vendor-main-66e77022e0.js:52
(anonymous) @ vendor-main-66e77022e0.js:52
c.next @ vendor-main-66e77022e0.js:56
b.onNext @ vendor-main-66e77022e0.js:52
c.next @ vendor-main-66e77022e0.js:54
b.onNext @ vendor-main-66e77022e0.js:52
(anonymous) @ vendor-main-66e77022e0.js:52
c.next @ vendor-main-66e77022e0.js:56
b.onNext @ vendor-main-66e77022e0.js:52
b.next @ vendor-main-66e77022e0.js:53
b.onNext @ vendor-main-66e77022e0.js:52
(anonymous) @ vendor-main-66e77022e0.js:52
c.next @ vendor-main-66e77022e0.js:56
b.onNext @ vendor-main-66e77022e0.js:52
(anonymous) @ vendor-main-66e77022e0.js:53
(anonymous) @ vendor-main-66e77022e0.js:52
g @ vendor-main-66e77022e0.js:53
b @ vendor-main-66e77022e0.js:52
mc.invokeCore @ vendor-main-66e77022e0.js:52
mc.invoke @ vendor-main-66e77022e0.js:52
b @ vendor-main-66e77022e0.js:52
(anonymous) @ vendor-main-66e77022e0.js:52
c.schedule @ vendor-main-66e77022e0.js:52
d._subscribe @ vendor-main-66e77022e0.js:53
(anonymous) @ vendor-main-66e77022e0.js:53
Mc.subscribe.Mc.forEach @ vendor-main-66e77022e0.js:53
b.next @ vendor-main-66e77022e0.js:53
b.onNext @ vendor-main-66e77022e0.js:52
(anonymous) @ vendor-main-66e77022e0.js:52
c.next @ vendor-main-66e77022e0.js:56
b.onNext @ vendor-main-66e77022e0.js:52
c.next @ vendor-main-66e77022e0.js:53
b.onNext @ vendor-main-66e77022e0.js:52
(anonymous) @ vendor-main-66e77022e0.js:52
c.next @ vendor-main-66e77022e0.js:56
b.onNext @ vendor-main-66e77022e0.js:52
c.next @ vendor-main-66e77022e0.js:53
b.onNext @ vendor-main-66e77022e0.js:52
onNext @ vendor-main-66e77022e0.js:56
Ctrl-Enter @ commonFramework-5fb8a91fbb.js:1
lr @ vendor-challenges-4c8b281e85.js:11
(anonymous) @ vendor-challenges-4c8b281e85.js:11
e.lookupKey @ vendor-challenges-4c8b281e85.js:14
sr @ vendor-challenges-4c8b281e85.js:11
ar @ vendor-challenges-4c8b281e85.js:11
ur @ vendor-challenges-4c8b281e85.js:11
fr @ vendor-challenges-4c8b281e85.js:11
(anonymous) @ vendor-challenges-4c8b281e85.js:11