Problem:
Score : 100 points

Problem Statement

You are given a string S consisting of letters b, d, p and q.
Determine whether S is a mirror string.

Here, a mirror string is a string S such that the following sequence of operations on S results in the same string S:

Reverse the order of the characters in S.

Replace each occurrence of b by d, d by b, p by q, and q by p, simultaneously.

Constraints

1 \leq |S| \leq 10^5

S consists of letters b, d, p, and q.

Input

The input is given from Standard Input in the following format:

S

Output

If S is a mirror string, print Yes. Otherwise, print No.

Sample Input 1

pdbq

Sample Output 1

Yes

Sample Input 2

ppqb

Sample Output 2

No

Solution in C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<stdio.h>
#include<string.h>
char a[100000010];
int main(){
	scanf("%s",a);
	int t=1;
	for(int i=0;i<=(strlen(a)-1)/2;i++){
		if((a[i]=='d'&&a[strlen(a)-i-1]=='b')||(a[i]=='b'&&a[strlen(a)-i-1]=='d')||(a[i]=='q'&&a[strlen(a)-i-1]=='p')||(a[i]=='p'&&a[strlen(a)-i-1]=='q'));
		else t=0;
	}
	if(t)printf("YES");
	else printf("NO");
}