#include <bits/stdc++.h>

#define ll long long
#define ld long double
#define rep(i,a,b) for (int i = a; i < b; i++)
#define irep(i,a,b) for (int i = a; i > b; i--)
#define print(n) cout << n << endl
#define rup(a,b) (a+b-1)/b

using namespace std;
int d[30];
int main(){
    cout << fixed << setprecision(15);
    
    string a,b;
    cin>>a>>b;

    rep(i,0,a.size()){
        d[int(a[i]-'a')] ++;
    }
    rep(i,0,b.size()){
        d[int(b[i]-'a')] --;
        if (d[int(b[i]-'a')] < 0){
            print("NO");
            return 0;
        }
    }
    print("YES");
    //system("pause");
    return 0;
}