#include<iostream>
#include<cstring>

using namespace std;

int main()
{
    string str;
    getline(cin,str);

    char c;
    cin >> c;

    for(int i = 0;str[i];i ++)
    {
        if(str[i] == c) str[i] = '#';
    }
    cout << str << endl;

    return 0;
}