program truefalse;
uses wincrt;
var a, b: string;
begin
readln (a);
readln (b);
if ((a = 'true') and (b = 'true')) then
write ('true')
else
if (((a = 'true') and (b = 'false')) or ((a = 'false') and (b = 'true'))) then
write ('false')
else
write ('false');
end.