Uses
CRT;
Var
s,f:string;
kol,l:integer;
begin
ClrScr;
kol:=0;
f:='';
write('=: ');
repeat
begin
readln(s);
if s[length(s)]='.' then
begin
inc(kol);
end;
f:=f+s;
end;
until kol=1;
for l:=1 to length(f) do
if f[l] in ['0'..'9'] then
begin
write(f[l]);
end;
readln;
end.