coreToGrade is a HashMap with Double key type and Character value type, representing the test score and grade of a student. Integer dataCount is read from input. Then dataCount key$-$value pairs are read from input and inserted into scoreToGrade. For each value in the HashMap, output $"=>"$ followed by the value and a newline.

Ex: If the input is:

$389\mathrm{.}0$ B $87\mathrm{.}5$ B $68\mathrm{.}5$ D

then one possible output is:

All values found: $=>$ D $=>$ B $=>$ B