var
s,s0:string;
c:char;
i:integer;
begin
readln(s,s0,c);
i:=1;
repeat
if s[i]=c then
begin
insert(s0,s,i+1);
inc(i,Length(s0))
end;
inc(i);
until
i>Length(s);
writeln(s)
end.
var
s,s0:string;
c:char;
i:integer;
begin
readln(s,s0,c);
i:=1;
repeat
if s[i]=c then
begin
insert(s0,s,i+1);
inc(i,Length(s0))
end;
inc(i);
until
i>Length(s);
writeln(s)
end.