#H. 【例46.3】素数回文数的个数

Type: RemoteJudge

1000ms

128MiB

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说明

求 $11$ 到 $n$ 之间（包括 $n$ ），既是素数又是回文数的整数有多少个。

一个大于 $11$ 且小于 $1000$ 的整数 $n$ 。

$11$ 到 $n$ 之间的素数回文数个数。