#include <bits/stdc++.h>
using namespace std;
int main(){
	string s;
	cin>>s;
	char c;
	cin>>c;
	for(int i=0;i<s.size();i++)if(s[i]!=c)cout<<s[i];
	return 0;
}

/**************************************************************
	Problem: 1131
	User: zhouhongyi
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2076 kb
****************************************************************/