IR Code Compile Error

Has anyone used this IR library before?

The IR Receiver Dump sketch is working, outputs to serial monitor:

77E1D08B
Decoded NEC: 77E1D08B (32 bits)

However, I don't know if this is a HEX number or not. Is it?

I also notice the end of NEC 32bit is 8B. I removed these and it seems to compile without errors.
However, nothing happens, when remote button is pressed.