41A

#include <stdio.h>
#include <string.h>
 
#define MAXSIZE 105
 
int main()
{
    char Berlandish[MAXSIZE];
    char Birlandish[MAXSIZE];
    scanf("%s", Berlandish);
    scanf("%s", Birlandish);
    int length=strlen(Berlandish);
    int i, j;
    for(i=0, j=(length-1); i<length; ++i,--j)
    {
        if(Berlandish[i]==Birlandish[j])
            ;
        else
            break;
    }
    //printf("%d\n", i);
    if(i==length)
        printf("YES\n");
    else
        printf("NO\n");
    return 0;
}