what is the output of this code?

"THIS IS AB EXAMPLE OF SHITTY OBFUSCATION !!!" "DONT FUCK WITH ME. THE OUTPUT IS 21 becouse 9+10 EQUALS 21";
def exce(code_input): return;
def decrament(A, AA): "BINGOCARD is the value of AAA, fucking niggermonkey";BINGOCARD="A1, A2"; AAA=A * AA; "DONT DELETE !!!"; exec('print("\x54h\x65 \x72\x65\x73\x75\x6C\x74 \x6F\x66\x20\x74\x68\x65 \x6D\x75\x6C\x74\x69\x70\x6C\x69\x63\x61\x74\x69\x6F\x6E\x20\x69\x73\x3A\x20", AAA); AAA=BINGOCARD.lower # RETURNS AAA AS BINGOCARD BUT LOWERCASE!!!!;');
def incrament(a,b): return a,b; # def incrament(A, AA): AAA=A + AA; "DONT DELETE !!!"; exec('print("\x54\x68\x65 \x72\x65\x73\x75\x6C\x74 \x6F\x66\x20\x74\x68\x65 \x61\x64\x64\x69\x74\x69\x6F\x6E\x20\x69\x73\x3A\x20", AAA)');
# # OUTPUTS THE NUMBER RETARD exec('1-1'); 
exec('ammount=incrament(9, 10); "GUESSING NOW!!!"; #The result was print(21)'); exec('exce(\'print(\"Please send a funny internet packet to hypixel . net. CRASHIN THE SER!VER!\"\')')
class AAAAA: init_m="DONT DELETE !!!"; init_w = exec('init_m=2+2;'); A, AA= 0, 0; exec('for i in range(10):\n A+=1'); exec('for i in range(5):\n AA+=1'); exec('1-1'); decrament(A, AA) # SPECTATE ME