import java.util.Scanner;
public class Main{
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    boolean mr = false;
    boolean value = false;
    int i = 0;
    String appoi = scan.nextLine();
    String mrmax = scan.nextLine();
    String maxvalue = scan.nextLine();
    String[] appoi2 = appoi.split(" ");
    String[] mrmax2 = mrmax.split(" ");
    String[] maxvalue2 = maxvalue.split(" ");
    for(;i < mrmax2.length;i++){
      if(appoi2[0].equals(mrmax2[i])){
        mr = true;
        break;
      }
    }
    for(;i < maxvalue2.length;i++){
      if(appoi2[0].equals(maxvalue2[i])){
        value = true;
        break;
      }
    }
    if(mr == true && value == false){
      System.out.println("MrMax");
    }else if(mr == false && value == true){
      System.out.println("MaxValu");
    }else if(mr == true && value == true){
      System.out.println("MrMaxValu");
    }else{
      System.out.println("-1");
    }
  }
}