Problem Description
There must be many A + B problems in our HDOJ , now a new one is coming.
Give you two hexadecimal integers , your task is to calculate the sum of them,and print it in hexadecimal too.
Easy ? AC it !
Input
The input contains several test cases, please process to the end of the file.
Each case consists of two hexadecimal integers A and B in a line seperated by a blank.
The length of A and B is less than 15.
Output
For each test case,print the sum of A and B in hexadecimal in one line.
Sample Input
+A -A
+1A 12
1A -9
-1A -12
1A -AA
Sample Output
0
2C
11
-2C
-90
#include<stdio.h>
void main()
{
__int64 a,b,sum;
while(scanf("%I64X %I64X",&a,&b)!=EOF)
{
sum=a+b;
if(sum>=0)
printf("%I64X\n",sum);
else
printf("-%I64X\n",-sum);
}
}