d,,d, d,,d, d,,d, d,,d,
b,, ,., ,., ,., ,.
,SSg, b,.,SSg, b, ,SSg, gb ,SSg, ,
,b.dS g ,b.dS,g ,b. ,b. ,
b Sb,.,dpHzS ,b Sb,.,db,Sb,.,d,d
Sb,. .,s,.,sb,.,si b,. ,,,db,. ,,dS
b,,.