A + B Again 2057 有符号的64进位的运算

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

Author

linle

Source

校庆杯Warm Up

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 1 #include<stdio.h>
 2 int main()
 3 {
 4    long long int x,y,z;
 5     while(~scanf("%llx%llx",&x,&y))
 6     {
 7     (x+y>=0)?printf("%llX\n",x+y):printf("-%llX\n",-(x+y));
 8     }
 9     return 0;
10 }