0 0  0I[position (x,y)]
0 1  0I[direction (x,y)]

gD9iGW[
	0
	gD'/GW[
		'0 s
		S 9im S a
	gD'/G]
	',EI[gP]

	S

	D 'R EI[ 4R 4R S 0Ss 4r 4r ]
	D 'L EI[ 4R 4R 0Ss S 4r 4r ]
	P

	3r
	SD3RD3r
	5R

	D 3r m 3r m S
	0I[stack: posx posy dirx diry incrx incry]

	5R a 4r
	0I[stack: posx newposy dirx diry incrx]

	5R a 4r
	0I[stack: newposx newposy dirx diry]

gD9iG]
P

PP
D0LI[0Ss] S D0LI[0Ss]
aO 9io