~
MAIN - - -
1*2 ---
1*3 ---
2*3 ---
2*5 ---
3*4 ---
3*5 ---
3*10 ---
4*5 ---
4*10 ---
5*7 ---
5*10 ---
10*12 ---
10*15 ---
10*20 ---
High low
input - - - High Low
~ 0 0 0 0 0




1*2