s = input()
t = input()
print(*[c if c not in t else '' for c in s], sep='')

#include <bits/stdc++.h>

using namespace std;

int main()
{
    string s1, s2;
    getline(cin, s1);
    getline(cin, s2);

    bool flag = false;
    if ( s2.find(' ') != string::npos ) flag = true;
    for ( int i = 0; i < s1.size(); )
    {
        if ( s2.find(s1[i]) != string::npos )
            for ( int j = i; j < s1.size(); j ++ ) s1[j] = s1[j + 1];
        else if ( flag && s1[i] == ' ' )
                for ( int j = i; j < s1.size(); j ++ ) s1[j] = s1[j + 1];
        else i ++ ;
    }
    printf("%s", s1.c_str());
    return 0;
}