Example $2-$ What does the following Turing machine do$?$

$Q=\{q_0,q_1\}$

$=\{a,b\}$

$=\{a,b,\}$

$F=\{\}$

$(q_0,a)=(q_1,a,R)$

$(q_0,b)=(q_1,b,R)$

$(q_0,)=(q_1,,R)$

$(q_1,a)=(q_0,a,L)$

$(q_1,b)=(q_0,b,L)$

$(q_1,)=(q_0,,L)$