Palindromic String

You have been given a String $S$.You need to find and print whether this string is a palindrome or not. If yes, print "YES" (without quotes), else print "NO" (without quotes).
Input Format
The first and only line of input contains the String $S$. The String shall consist of lowercase English alphabets only.
Output Format
Print the required answer on a single line.

 

SAMPLE INPUT

aba

SAMPLE OUTPUT

YES

Code:

#include<stdio.h>
#include<string.h>

int main()
{
int i,j,a;
char s[100],p[100];
gets(s);
i=0;
a=strlen(s);
for(i=1,j=a;i<a;i++,j--)
{
p[i]=s[j];
}
if(strcmp(s,p))
{
printf("YES");
}
else
{
printf("NO");
}
}