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

int main()
{
    char pajar[1024] = "", aguja[1024] = "";
    fgets(pajar, sizeof(pajar), stdin);
    fgets(aguja, sizeof(aguja), stdin);
    char *aguja_en_pajar = strstr(pajar, aguja);
    if (aguja_en_pajar != NULL)
        memcpy(pajar, aguja_en_pajar, strlen(aguja));    
    printf("%s\n", pajar);    
}