var a,b,c,d,e,f,g:longint;
begin
read(a,b,c);
if (a>=86) and (b>=86) and (c>=86) then if (a+b+c) div 3>90 then write('good')
                                                            else write('sorry')
                                                            else write('sorry');
                                                            end.
/**************************************************************
	Problem: 1657
	User: admin
	Language: Pascal
	Result: Wrong Answer
****************************************************************/