30 



Rl 



Rl 



R2 



Rl 



Rl 



S 



S 



R1-I1-F4 



Rl 



Rl 



S 



S 



Rl 



Rl 



Rl-Il-Fl 



Rl 



Rl 



Rl 



Rl 



Rl 

 Rl 



R3-I2-F24b 



R2 



Rl 



Rl 



Rl 



Rl-Il-F27b 



R1-I4-F16 



Rl 



S 



S 



Rl 



S 



Rl 



Rl 



Rl 



Rl 



Rl 



R2 



RlSl 



Rl 



R2 



Rl 



R1-I3-F12 



R2-Il-F15b 



R2-I3-F11 



R2S3 



R1-I8-F28 



