#D. 练20.1 适合晨练

Type: RemoteJudge

1000ms

64MiB

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说明

输入温度 $t$ 的值，判断是否适合晨练。( $25≤t≤30$ ，则适合晨练 ok! ，否则不适合 no! )。

输入温度 $t$ 的值。

输出判断结果。

ok!