TTL


x2	x1	x0	y
0	0	0	0
0	0	1	0
0	1	0	0
0	1	1	0
1	0	0	1
1	0	1	1
1	1	0	0
1	1	1	1

Image IMG_5048

Image IMG_5049

Image IMG_5050

Image IMG_5051

Image IMG_5052

Image IMG_5053