#include<bits/stdc++.h>
using namespace std;
int main()
{
string s1;
getline(cin,s1);
char c;
cin >> c;
int n = s1.size();
for (int i = 0; i < n; i++) {
if (s1[i] == c) {
s1[i] = '#';
}
}
cout << s1 << endl;
return 0;
}