999-888+11=b
111+11=b
122=b
c+c=120
c=120:2
c=60
(844-644)-e=0
200-e=0
e=200
a+d=2
d > a
f+(c+d)-(b+c)=a+100
f+(60+d)-(122+60)=a+100
f+(60+d)-182=a+100
f+(60+d)=a+182+100
f+(60+d)=a+282
f+d=a+282-60
f+d=a+222
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