program operastring;

var
s1,s2,s3,s4 : string;

begin
        readln(s1);
        readln(s2);
        readln(s3);
        readln(s4);
        delete(s1,pos(s2,s1),length(s2));
        insert(s4,s1,pos(s3,s1)+length(s3));
        writeln(s1);
end.