C++ :

#include<stdio.h>
#include<string.h>
int main(){
	char str[250];
	while(scanf("%s",str)!=EOF){
		int len=strlen(str);
		int flag=1;
		for(int i=0,j=len-1;i<j;i++,j--){
			if(str[i]!=str[j]){
				flag=0;
				break;
			}
		}
		if(flag==0){
			printf("N\n"); 
		}else{
			printf("Y\n");
		}
	}
	return 0;
}

Java :

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		
		Scanner in = new Scanner(System.in);
		
		String c = in.nextLine();
		
		if(issame(c)==true)
			System.out.println("Y");
		else
			System.out.println("N");
		
		
		
	}
	public static boolean issame(String c){
		
		
		return new StringBuffer(c).reverse().toString().equals(c);
		
	}

}