CF236A.Boy or Girl

Those days, many boys use beautiful girls' photos as avatars in forums. So it is pretty hard to tell the gender of a user at the first glance. Last year, our hero went to a forum and had a nice chat with a beauty (he thought so). After that they talked very often and eventually they became a couple in the network.

But yesterday, he came to see "her" in the real world and found out "she" is actually a very strong man! Our hero is very sad and he is too tired to love again now. So he came up with a way to recognize users' genders by their user names.

This is his method: if the number of distinct characters in one's user name is odd, then he is a male, otherwise she is a female. You are given the string that denotes the user name, please help our hero to determine the gender of this user by his method.

那些日子里，许多男生在论坛中使用美女的照片作为头像。因此，仅凭第一眼很难判断用户的性别。去年，我们的主角来到一个论坛，并与一位美女（他自以为如此）进行了愉快的聊天。此后，他们频繁交流，最终在网络上成为了一对情侣。

但昨天，他来到现实世界中与“她”见面，却发现“她”实际上是一位非常强壮的男士！我们的主角十分伤心，如今已疲惫不堪，再也不想谈恋爱了。于是，他想出了一种通过用户名来识别用户性别的方法。

他的方法如下：如果某人的用户名中不同字符的个数为奇数，则该用户为男性；否则为女性。现给你一个表示用户名的字符串，请根据他的方法帮助主角判断该用户的性别。

The first line contains a non-empty string, that contains only lowercase English letters — the user name. This string contains at most 100 letters.

第一行包含一个非空字符串，该字符串仅由小写英文字母组成——即用户名。该字符串最多包含 100 个字母。

If it is a female by our hero's method, print "CHAT WITH HER!" (without the quotes), otherwise, print "IGNORE HIM!" (without the quotes).

如果按照我们主角的方法判断为女性，则输出 "CHAT WITH HER!"（不带引号），否则输出 "IGNORE HIM!"（不带引号）。

For the first example. There are 6 distinct characters in "wjmzbmr". These characters are: "w", "j", "m", "z", "b", "r". So wjmzbmr is a female and you should print "CHAT WITH HER!".

对于第一个例子，“wjmzbmr”中有 6 个不同的字符，这些字符是：“w”、“j”、“m”、“z”、“b”、“r”。因此，“wjmzbmr”是一个女生，你应该输出“CHAT WITH HER!”。