/*
Program#98
Delete the Pattern
*/
#include <stdio.h>
main(){
char a[100],b[100],c[100];
int i,j,l,k;
i=0;
scanf("%c",&a[i]);
while(a[i]!='$'){
i++;
scanf("%c",&a[i]);
}
a[i]='\0';
j=0;
scanf("%c",&b[j]);
while(b[j]!='$'){
j++;
scanf("%c",&b[j]);
}
b[j]='\0';
i=0;l=0;
while(a[i]!='\0'){
j=0;
k=i;
while((b[j]==a[k]) && (b[j]!='\0')){
j++;
k++;
}
if(b[j]=='\0'){
i=k;
}
c[l]=a[i];
i++;
l++;
}
c[l]='\0';
printf("\na=%s \nb=%s \nc=%s",a,b,c);
}