#include<algorithm>
#include<cstring>
#include<cstdio>
#include<cmath>
char s[100007];
int get[128];
int main()
{
    get['b'] = 0 , get['p'] = 1 , get['d'] = 2 , get['q'] = 3;
    scanf("%s",s+1);
    for(int l = strlen(s+1), i = 1; i <= (l>>1) + 1; ++i)
    {
        if(get[s[i]]^((get[s[l-i+1]]+2)%4)) return printf("No\n"),0;
    } 
    return printf("Yes\n"),0;
}