import java.util.Scanner; public class Demo3 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int number = sc.nextInt(); int i = number%14; if(i>8) { i = i-i%8; } switch (i) { case 1: System.out.println("A"); break; case 2: System.out.println("B"); break; case 3: System.out.println("C"); break; case 4: System.out.println("D"); break; case 5: System.out.println("E"); break; case 6: System.out.println("F"); break; case 7: System.out.println("G"); break; case 8: System.out.println("H"); break; default: break; } } }