a=5,b=6,
∴S=a+ 12b- 1
=5+ 12×6- 1
=7
(2) The same is true for graphics.
Figure 3, a=3, b=8,
Figure ④, a= 1, b= 12,
Figure 5, a=3, b=8,
So the answer is: 3, 8; 1, 12; 3,8.