时间限制: 2s
内存限制: 192MB 提交: 7640 解决: 5038
题目描述
判断一个正整数是否是两位数（即大于等于10且小于等于99）。
输出格式
一行。若该正整数是两位数，输出1，否则输出0。
提示
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