Write a program that calculates the average of a group of test scores, where the lowest score

in the group is dropped. For example: if the user enters the values $65,43,78,67$ and $64,$ the output

will be:

$5$

After dropping the lowest test score, the test average

is $68\mathrm{.}50$

This average is calculated by dropping the lowest score which is $43$ and dividing the sum of the

remaining four values $65,78,67$ and $64,$ which is $274,$ by $4.$