Смена первого и последнего списка элементы
temp = normal[0] # save first value to temp
normal[0] = normal[-1] # change last value to first value
normal[-1] = temp # change last value to temp value
# You can do it in one line x[0], x[-1] = x[-1], x[0]
normal[-1], normal[0] = normal[0], normal[-1]
Vainius Dauderys