public static void main(String[] args)
  {
    int n;
    int m;
    String d;
    char c;
    
    Scanner sc = new Scanner(System.in);
    
    System.out.println("Input Integer: ");
    
    //get the value
    n=sc.nextInt();
    
    int answer = sum_upto(n);
    
    System.out.println("sum of numbers from 1 to n: " + answer);
    
    System.out.println("input a character and two integers: ");
    
    //get the values
    d=sc.next();
    n=sc.nextInt();
    m=sc.nextInt();
    d.charAt(0);
    
    
    System.out.println(writeBlock(c, m, n));
   }