(+4)+(-4)+(-6)+(-6)+(12)-(-12)
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2
+4-4-6-6+12+12
0-6-6+12+12
0-12+12+12
-12+12+12
0+12
12
Ans =12
0-6-6+12+12
0-12+12+12
-12+12+12
0+12
12
Ans =12
adithya33:
srry
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