I don't think there's a clearly defined answer to this question, if it was written as say (1+1+1+1+1+1+1+1+1+1)-(1+1+1+1+1+1+1x0)=? that would be easy or 1+1+1+1+1+1+1+1+1+1-1+1+1+1+1+1+(1x0)=? would be pretty simple too but the lack of any real separation makes it hard to tell what the answer...
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