package calisma;
public class Main
public static void main ( string [] args){
int x =70 ;
if (x>=90) {
System.out.println("A");}
else if (x>=80){
System.out.println("B");}
else if (x>=70){
System.out.println("C");}
else if (x>=60){
System.out.println("D");}
else {
System.out.println("E");}
}
}