I just tried it twice, it didn't work

the results:

THT TTT TTT RRRRRR THT LLLLLLLL
HTT HHT THH XXXXXX THH XXXXXXXX
THH TTH TTT XXXXXX THT XXXXXXXX
HHT THT TTH XXXXXX TTT XXXXXXXX
TTT HTT THT XXXXXX HHT XXXXXXXX
TTH HTH THT XXXXXX TTH LLLLLLLL
HTH HHH HTH LLLLLL THH XXXXXXXX

R 1
L 3

L = random predicion
R = prediction after middle number switched and put to the left, leaving number on far right off