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$1.$ Write the code to exchange the values of the following variables.

marks$1$ word $54$h

marks$2$ word $37$h

$2.$ Write the code to perform the following arithmetic operation.

Sum$=2+3+$ var$2-$var$1+10$h$-$var$3$

Initialize var$1$ and var$2$ as follows.

var$1$ dw $20$h

var$2$ dw $60$h

var$3$ dw $5$h

$3.$ Create an array named $$evenArray$$ to store the square of numbers between $1$ to $4(1,4,9,16).$ Then increment the second value of this array.Copy the third value into any registers