Assuming the existence of readBlock and writeBlock methods, write a pseudocode program for shifting data to make a gap at some specified location of a sorted file. Pay particular attention to the details of shifting the last item out of one block and into the first position of the next block. You can assume diat the last record of the file is in record lastRec of block lastBlock and that lastBlock is not full. (Note that this assumption permits shifting widiout allocating a new block to the file.)
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