#define MODEL_Root              0x12
#define MODEL_g1                0x11
#define MODEL_g28               0x10
#define MODEL_g31               0xF
#define MODEL_o59               0xE
#define MODEL_o58               0xD
#define MODEL_o57               0xC
#define MODEL_exit              0xB
#define MODEL_g7                0xA
#define MODEL_b_w2              0x9
#define MODEL_b_w               0x8
#define MODEL_g11               0x7
#define MODEL_b_s2              0x6
#define MODEL_b_s               0x5
#define MODEL_g2                0x4
#define MODEL_g10               0x3
#define MODEL_stage             0x2
#define MODEL_g5                0x1
#define MODEL_o3                0x0