6-13

//6-13
#include 
#include 
#include"string.h"
int main()
{
    //freopen("in.txt","r",stdin);
    char s1[200],s2[100];
    scanf("%s %s",s1,s2);
    int len=strlen(s1);
    int i;
    for(i=0;s2[i];i++)
    {
        s1[i+len]=s2[i];
    }
    s1[i+len]=0;
    printf("%s\n",s1);
    printf("\n");
    return 0;
}