#include <bits/stdc++.h>
using namespace std;
int main() {
set<char> st;
string s;
cin>>s;
int n,a;
cin>>n;
for(int i=0;i<s.size();i++)
{
cout<<s[i];
}
while(n--)
{
char x;
cin>>x;
for(int i=0;i<a;i++)
{
if(s[i]==x)
s.erase(x);
}
}
return 0;
}
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