题解详见小礼物的大神的BLOG，弱渣就不说了。。。http://dzy493941464.is-programmer.com/posts/39629.html
program p1022;
var
t,n,i,ans,k,j,k1,k2:longint;
bo:boolean;
begin
read(t);
for k:=1 to t do begin
read(n);
ans:=0; k2:=0;
for i:=1 to n do begin
read(k1);
if k1>1 then inc(k2);
ans:=ans xor k1;
end;
if ((ans=0) and (k2>0)) or ((ans<>0) and (k2=0)) then writeln('Brother') else writeln('John');
end;
end.
2022年8月27日 19:36
Bangladesh Education Board DPE has conducted the class 8th grade of Junior School Certificate Exam and Junior Dakhil Certificate Exam on 1st to 15th November 2022 at all centers in division wise under Ministry of Primary and Mass Education (MOPME), and the class 8th grade terminal examination tests are successfully conducted for all eligible JSC/JDC students for the academic year of 2022. JSC Result Barisal Board The Bangladesh government Minister of Secondary Education is going to announce the JSC Result 2022 in student wise for division students in education board wise, and the result documents will be submitted to the Prime Minister of the country after then the result with mark sheet will be announced to public to check the individual result.