ItemGroupNum	ItemWeight	ItemList
1	100	[[2,1000,0],[3,100,0],[4,10,0],[5,2,0]]
2	100	[[2,1000,0],[3,50,0],[4,10,0],[5,2,0],[6,5,0]]
3	100	[[2,1000,0],[3,50,0],[4,10,0],[5,2,0],[7,300,0]]
4	100	[[2,1000,0],[3,50,0],[4,10,0],[5,2,0],[8,10,0]]