#include <stdio.h>
#include <string.h>

int main() {
    char str[100], sub[100];
    fgets(str, 100, stdin);
    fgets(sub, 100, stdin);

    // Remove newline characters
    str[strcspn(str, "\n")] = '\0';
    sub[strcspn(sub, "\n")] = '\0';

    int str_len = strlen(str);
    int sub_len = strlen(sub);

    char result[100];
    int result_index = 0;
	int i,j;
    for (i = 0; i < str_len; i++) {
        int match = 1;
        for (j = 0; j < sub_len; j++) {
            if (str[i + j] != sub[j]) {
                match = 0;
                break;
            }
        }

        if (match) {
            i += sub_len - 1;
        } else {
            result[result_index++] = str[i];
        }
    }

    result[result_index] = '\0';
    printf("%s\n", result);

    return 0;
}