uses
    testlib, sysutils;
var
    ja, pa: string;
    i, l: longint;
begin
	l := 0;
	while not ans.seekeof do begin
        ja := ans.readword(blanks, blanks);
        if ouf.seekeof then
        	quit(_pe, 'not enough numbers');

        pa := ouf.readword(blanks, blanks);

        inc(l);

        if not (pa[1] in ['-', '0'..'9']) then
            quit(_pe, 'invalid character in answer');
        for i := 2 to length(pa) do
            if not (pa[i] in ['0'..'9']) then
                quit(_pe, 'invalid character in answer');

        if ja <> pa then
            quit(_wa, 'number ' + inttostr(l) + ' - expected: "' + ja + '", found: "' + pa + '"');
    end;

    if not ouf.seekeof then
    	quit(_pe, 'too many numbers');

    quit(_ok, '');
end.