program z5_51;
uses crt;
var max,min,i,n:longint;
BEGIN
clrscr;
writeln('n');
readln(n);
i:=n;
min:=9;
max:=0;
while i<>0 do begin
if i mod 10> max then max:=i mod 10;
if i mod 10< max then max:=i mod 10;
i:=i div 10;
end;
writeln('max=',max,'min=',min);
if not odd(max-min) then writeln('raznost chethaya')
else writeln('raznost ne chetnaya');
readln;
END.