i,j,k;f(s,z)char*s,*z;{
for(i=0,j=k=1;j|k;i++)
(k=k?z[i]:0)>46|!(j=j?s[i]:0)
?k
:j
);
}
char a[100], b[100];
main() {
while(~
scanf("%s %s\n", a
, b
)){ printf("'%s', '%s' -> ", a
, b
); f(a, b);
}
}
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