program vct;
uses crt;
var
a,b,c:longint;
begin
writeln('Nhap a = '); readln(a);
writeln('Nhap b = '); readln(b);
writeln('Nhap c = '); readln(c);
if (((a+b)>c) and ((b+c)>a) and ((c+a)>b)) then write('DAY LA DO DAI BA CANH CUA MOT TAM GIAC')
else write('DAY KHONG PHAI LA DO DAI BA CANH CUA MOT TAM GIAC');
readln;
end.