Write a program that accepts a list of test scores separated by a space in one line and then assigns grades to each score using the following criteria:Grade of A if the test score is $>=90$Grade of B if the test score is $>=80$Grade of C if the test score is $>=70$Grade of D if the test score is $>=60$Grade of F if the test score is $<60$A valid test score falls in the indicated range: $0<=$ test score $<=100.$ If the user enters an invalid test score, provide an error message, and allow the user to re$-$enter the test score list.Sample Output:Enter test scores: $809573866050$A score of $80$ is a grade of BA score of $95$ is a grade of AA score of $73$ is a grade of CA score of $86$ is a grade of BA score of $60$ is a grade of DA score of $50$ is a grade of F After the test score grades are displayed, allow the user to enter another list of test scores or provide a closing message and end the program.