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import java.util.Scanner;
public class Example {
public static void main(String args[]) {
Scanner reader = new Scanner(System.in);
String str = reader.next();
System.out.println(r(str));
}
static boolean r(String str) {
for (int i = 0; i < str.length() - i - 1; i++)//str为要判断的字符串
{
if (str.charAt(i) == str.charAt(str.length() - i - 1)) {
continue;
} else {
return false;
}
}
return true;
}
}
System.out.println(new StringBuilder(str).reverse().toString().equals(str));