import java.util.*;
class B_Letter {
public static void main
(String[] args
) { for (char c = 'A'; c <= 'Z'; ++c) {
charset.put(c, 0);
}
for (char c = 'a'; c <= 'z'; ++c) {
charset.put(c, 0);
}
Scanner s
= new Scanner
(System.
in); for (char c : s.nextLine().toCharArray()) {
if (c != ' ') {
charset.put(c, charset.get(c) + 1);
}
}
for (char c : s.nextLine().toCharArray()) {
if (c != ' ') {
int n = charset.get(c) - 1;
if(n < 0){
return;
}
charset.put(c, n);
}
}
}
}
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