How to write KO Saku-shi Nagano in Japanese characters

How to write KO Saku-shi Nagano in Japanese characters. The data come from Japan Post.

zipcode and address

KO（Inseart numbers and so on before the address）
Saku-shi, Nagano
384-2104 Japan

Japanese Kanji

You can click/tap to copy Japanese Expression partially.
長野県佐久市甲
3842104

Japanese Hiragana

ながのけんさくしこう

Japanese Katakana

ナガノケンサクシコウ

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