page7
8
1,R1 2,R2 3,R3 4,R4
The above should be saved as “tabletree.gif”.
5,R5 6,R6
7,R7 8,R8
4 6
9,R9 10,R10
11,R11 12,R12 13,R13
14,R14 15,R15
10 13