に ん てん どう だ いれ く と

The sequence you provided seems to be a string of Japanese syllables separated as: に (ni)
ん (n)
てん (ten)
どう (dou)
だ (da)
いれ (ire)
く (ku)
と (to) When combined, this can be read as "にんてんどう だいれくと" (nintendou dairekuto), which is a phonetic approximation of "Nintendo Direct," a term used by Nintendo for their online presentation events. Let me know if you want a translation or further explanation!