import java.util.*;

public class Transfer {

public static  void main(String[]args){

Scanner input=new Scanner(System.in);

String hex=input.nextLine();

System.out.println(“hex:”+hex.toUpperCase());

System.out.println(“Decimal:”+hexToDecimal(hex.toUpperCase()));

//
char c=’0′;

//
System.out.println(hexCharToDecimal(c));

}

public static int hexToDecimal(String hex)

{

int decimalValue=0;

for(int i=0;i<hex.length();i++)

{

char hexChar=hex.charAt(i);

decimalValue=decimalValue*16+hexCharToDecimal(hexChar);

}

return decimalValue;

}

public static int hexCharToDecimal(char hexChar)

{

if(hexChar>=’A’&&hexChar<=’F’)

return 10+hexChar-‘A’;

else

return hexChar-‘0’;//切记不能写成int类型的0，因为字符’0’转换为int时值为48

}

}