... P1 P 2 M 2 M1 β1L γ1L q α 2 L P 2 β 2 L F γ 2 L α1L P1 P 2 q M 2 M1 γ1L R R=β 2 L G H R1=α1L R 2 =α 2 L P1 R1 M 2 M1 R 2 P 2 ... γ 2 L α1L P1 P 2 q M 2 M1 β1L γ1L (1+δ)L β 2 L α 2 L A α 2 L α1L P1 P 2 q M 2 M1 β1L γ1L L γ 2 L β 2 L B γ 2 L α1L P1 P 2 q M 2 ... γ1L (1+δ)L α 2 L β 2 L C α1L P1 P 2 q M 2 M1 β1L γ1L L q β 2 L E D α 2 L α1L P1 P 2 q M 2 M1 β1L γ1L L β 2 L γ 2 L ...