program Zada4a_8;

{$APPTYPE CONSOLE}

var
a,b,c:real;
begin
write('a=');readln(a);
write('b=');readln(b);
write('c=');readln(c);
if SQR(a)+SQR(b)=SQR(c) then write('correct') else write('wrong');
readln;
end.