program tamgiac;
uses crt;
var a,b,c:integer;
begin
clrscr;
write('Nhap so thu nhat: '); readln(a);
write('Nhap so thu hai : '); readln(b);
write('Nhap so thu ba : '); readln(c);
if (a+b>c) and (b+c>a) and (a+c>b) then
write('La do dai ba canh cua tam giac')
else write('Khong la ba canh cua tam giac');
readln;
end.