import java.io.*;
public class Test
{
public static void main(String[] args) throws IOException
{
 char a;
 int c;
 System.out.println(“please input a char");
 a=(char)System.in.read();
 c=a;
 if (97<=c && c<=122)
 {
    c=c-97;
   System.out.println(c);}
  else
  { c=c-65;
   System.out.println(c);}  
  }  
  }