Question: Suppose ( row 1 , col 1 ) and ( row 2 , col 2 ) are two positions on a checkerboard. Rearrange the lines

Suppose (row1, col1) and (row2, col2) are two positions on a checkerboard. Rearrange the lines to produce a program fragment that checks whether the two positions are next to each other horizontally or vertically. Not all lines are useful.
 Suppose (row1, col1) and (row2, col2) are two positions on a

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