View Compilation Error

0_0_17227445_6582.cpp: In function 'int main()':
0_0_17227445_6582.cpp:7:47: error: expected ':' before ')' token
   printf(a+b>0?"%I64X":"-%I64X",a+b>0?a+b,-a-b);
                                               ^
0_0_17227445_6582.cpp:7:47: error: expected primary-expression before ')' token