var
k1, k2 , g: real;
begin
write('k1=');
readln(k1);
write('k2=');
readln(k2);
c := sqrt(k1*k1 + k2*k2);
writeln('g=',g:1:2);
end.
var
k1, k2 , g: real;
begin
write('k1=');
readln(k1);
write('k2=');
readln(k2);
c := sqrt(k1*k1 + k2*k2);
writeln('g=',g:1:2);
end.