import java.util.Scanner;

public class test2_2{
  public static void main (String[] args){

    int max_value, x;
    int i;

    Scanner scan = new Scanner(System.in);

    System.out.println("please input 5 numbers");
    max_value = scan.nextInt();

    for(i=0;i<4;i++){
      x = scan.nextInt();
      if(x > max_value){
        max_value = x; 
      }
   }
   System.out.println("The maximum number is:"+max_value);
 }
}