Explanation
{\textbf{Step1: Day after the day before yesterday is yesterday}}
{\textbf{Step2: Now,five days ago, yesterday was thursday}}
{\textbf{Step3: So, five days ago it was friday, therefore today is wednesday}}
{\textbf{Step4: Now,three days before the day after tomorrow is yesterday}}
{\textbf{Step5: Now, it is on monday that we say yesterday was sunday}}
{\textbf{Hence, 2 days ago sunday was three days befor$$e the day after tomorrow}}
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