#include <iostream>
#include <cstring>
#include <ctype.h>
using namespace std;

int main() {
    char s[1000];
    cin >> s;

    char c;
    cin >> c;

    char s2[1000];
    int idx = 0;

    for(int i = 0; i < strlen(s); i++) {
        if(s[i] != c) {
            s2[idx] = s[i];
            idx++;
        }
    }
    cout << s2 << endl;
    return 0;
}