digraph ex1p2a2 {
	rankdir="LR";
	node [texmode="math",shape="circle",style="state"];
	q0 [style="state,initial",label="0"];
	q7 [style="state,final",label="7"];
	edge [texmode="math",lblstyle="auto"];
	q0 -> q0 [label="a,b",topath="loop below"];
	q0 -> q7 [label="aa"];
	q0 -> q7 [label="bb",lblstyle="auto,below"];
	q7 -> q7 [label="a,b",topath="loop below"];
}