How to define hex character array in C?

[C++]

i have a simple question: I want to define a hex character array in C, but I don't want to have to define the elements one at a time. my programme needs an hexadecimal array as input of 128 bits. for example, unsigned char temp2[32]= {0x00 ,0x11 ,0x22 ,0x33 ,0x44 ,0x55 ,0x66 ,0x77 ...