Bad gateway issue! - python coding challenges

Hello, I cannot send the solution due to the following message "Bad Gateway". Anybody with the same problem?

I don't know if the problem could be that I'm sending the answers from China.

Thnks,

Created at: July 8, 2019, 9:07 a.m.; Updated at: July 8, 2019, 12:48 p.m.
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