b -1;//0
b 0;//1
b b,LR;
b2 b,LR;
b b2,LR;
bj1 b;
bj2 bj1;
bj3 bj2;
bG01 b;
bG02 bG01;
bG03 bG02;
bG04 bG03;
bG05 bG04;
bG06 bG05;
bG07 bG06;
bG08 bG07;
bG09 bG08;