What an excellent idea for a counting thread ! Hopefully I'm not too rusty at these languages...
三十一「さんじゅういち」/ Тридцать один / Trente et un / Einunddreißig / Trente uno (31)
Edit: Sorry, looks like I continued from the wrong number, here is the correction...
五十一「ごじゅういち」(gojuuichi) (or if from Mandarin: wu shi er) / Пятьдесят Один (pyat'dyesyat odin) / Cinquante et une / Einundfünfzig / Cincuenta uno (51)
(Also looks like I need to add German and Spanish into my browser-languages... so that they don't get marked with red-coloured squiggly under-lines as-if though they were spelling errors...)
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