Press number key 1 (20 points): Please input two integers A and B, if A>B, output "A>B", if A=B, output "A=B", otherwise output "A< B" (When outputting, please output the original input numbers for A and B instead of letters A and B). Press the number key 2 (15 points): Please input the score (0~100), if the score range is 90 points (inclusive)~100 points (inclusive), then output "A", if the score range is 80 points (inclusive) )~90 points (not included), then output "B", if the score range is 70 points (inclusive) ~ 80 points (not included), then output "C", if the score range is 60 points (inclusive) ~ 70 points (not included) Inclusive) then output "D", if the score is less than 60 points, output "E". Press the number key 3 (15 points): the user is asked to input the year, if it is a leap year, it will output "leap year", otherwise it will output "average year".
a porject
