program ideone;
var x,k,s,c : Integer;
begin
Write('x='); Readln(x);
Write('k='); Readln(k);
while x <> 0 do
begin
c := x mod 10;
if c < k then s := s + c;
x := x div 10;
end;
WriteLn('s=', s);
end.
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