Song Il Kook congratulated Dae Han, Min Guk, and Man Se on their 1000th day since birth!

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Song Il Kook, who understandably doesn't post on Twitter often, updated fans�on December 10,

songilkook

, "It has already been 1000 days since Dae Han, Min Guk, and Man Se were born~^^ Dyani, Kku Kkuk, Man Ddae! Thank you for growing up healthy! Please continue to grow up strong~^^," along with adorable photos of the triplets playing by the window sill.

Happy 1000th day, Dae Han, Min Guk, and Man Se! We're thankful for the happiness you give!