DEF AXIS OS
DEF REAL COORDINATE
IF LENG1 >= 200 GOTOF LABEL1
IF WIDTH1 >= 200 GOTOF LABEL2
IF DEPTH1 >= 20 GOTOF LABEL3
LABEL1:
OS = X
GOTOF END
LABEL2:
OS = Y
GOTOF END
LABEL2:
OS = Z
END:
REAL = $AA_MM[OS]