#include <iostream>
#include <string>
using namespace std;
int main() {
string s, t;
cin >> s >> t;
int freq[256] = {0};
for (char c : s) freq[c]++;
for (char c : t) {
if (--freq[c] < 0) {
cout << "NO\n";
return 0;
}
}
cout << "YES\n";
return 0;
}
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