#include <iostream>#include <cstdio>#include <cstring>using namespace std;#define lson rt<<1#define rson rt<<1|1int tree[2500],ttree[2500];char str[25];int main(){    int n;    while(~scanf("%d",&n),n){        memset(tree,-1,sizeof(tree));        scanf("%s",str);        int len=strlen(str);        for(int i=0;i<len;i++){            int a=str[i]-‘0‘;            int rt=1;            while(tree[rt]!=-1){                if(a<tree[rt])rt=lson;                else rt=rson;            }            tree[rt]=a;        }        for(int i=0;i<n;i++){            scanf("%s",str);            len=strlen(str);            memset(ttree,-1,sizeof(ttree));            for(int j=0;j<len;j++){                int a=str[j]-‘0‘;                int rt=1;                while(ttree[rt]!=-1){                    if(a<ttree[rt])rt=lson;                    else rt=rson;                }                ttree[rt]=a;            }            int flag=1;            for(int j=1;j<2500;j++)                if(tree[j]!=ttree[j]){                    flag=0;                    break;                }            if(flag)puts("YES");            else puts("NO");        }    }    return 0;}