#include <stdio.h>

#define N 500000
#define LENGTH 10

int main(int argc, char *argv[]){
    char a[LENGTH+1];
    char b[LENGTH+1];
    int c[LENGTH+1] = {0};
    int i,j,k;
    int tmp = 0;
    scanf("%s",a);
    scanf("%s",b);
    for(i=0; a[i]!='\0'; ++i);
    for (j = 0; j < i; j++)
    {
        for (k = 0; k < i; k++)
        {
            if (a[j] == b[k])
            {
                if (!c[j])
                {
                    c[j] = 1;
                    tmp++;
                    continue;
                }
            }
        }
    }
    if (tmp == i)
    {
        printf("YES\n");
    } else
    {
        printf("NO\n");
    }
    return 0;
}