digraph ex3p2 { rankdir="LR"; node [texmode="math",shape="circle",style="state"]; q0 [style="state,initial,final,initial above,accepting below",label="0"]; q1 [style="state",label="1"]; q2 [style="state",label="2"]; edge [texmode="math",lblstyle="auto"]; q0 -> q0 [label="a",topath="loop left"]; q0 -> q1 [label="b"]; q1 -> q0 [label="b"]; q1 -> q2 [label="a"]; q2 -> q1 [label="a"]; q2 -> q2 [label="b",topath="loop right"]; }