var a, b, c : integer ;
begin
readln(a,b,c);
if (a>=10) and (a<=99) and (b>=10) and (b<=99) and (c>=10) and (c<=99) then
write('true')
else write('false')
end.
var a, b, c : integer ;
begin
readln(a,b,c);
if (a>=10) and (a<=99) and (b>=10) and (b<=99) and (c>=10) and (c<=99) then
write('true')
else write('false')
end.