a,b,c,d,z
3,3,3000000000.3,set2,5.2
4,4,4000000000.4,set2,5.2
2,2,2000000000.2,set2,5.2
4,4,4000000000.4,set1,5.1
1,1,1000000000.1,set1,5.1
2,2,2000000000.2,set1,5.1
1,1,1000000000.1,set2,5.2
