C++ Initializing Non-Static Member Array

I am working on editing some old C++ code that uses global arrays defined like so:

int posLShd[5] = {250, 330, 512, 600, 680};
int posLArm[5] = {760, 635, 512, 320, 265};
int posRShd[5] = {765, 610, 512, 440, 380};
int posRArm[5] = {260, 385, 512, 690, 750};
int posNeck[5] = {615, 565, 512, 465, 415};
int posHead[5] = {655, 565, 512, 420, 370};

I want to make all of these arrays private members of the Robot class defined below. However, the C++ compiler does not let me initialize data members when I declare them.

class Robot
{
   private:
       int posLShd[5];
       int posLArm[5];
       int posRShd[5];
       int posRArm[5];
       int posNeck[5];
       int posHead[5];
   public:
       Robot();
       ~Robot();
};

Robot::Robot()
{
   // initialize arrays
}

I want to initialize the elements of these six arrays in the Robot() constructor. Is there any way to do this other than assigning each element one by one?