62-8=81-3=84-8=62-8=42+4=
33+6=5+39=27-6=74-20=21+9=
51-4=8+56=56-9=36-6=63-50=
48+5=53+9=79+6=52-8=6+54=
50-9=60+4=5+47=26+8=50-5=
44-9=37-8=71-6=5+37=46+3=
55-5=92-4=41-9=94-60=43+6=
5+49=83-8=23+4=6+33=95-70=
53+8=61-7=46+6=69-8=73+8=
62-20=32+8=74-6=56+4=34+50=
55+2=57-4=3+54=10+78=61-4=
学识谷
