a,9684.28,43836.82
b,10649.55,31996.50
c,19063.66,37818.86
d,17814.63,49923.19
*******************
1,2
***************
1,a,b,126.14241
a,b,1,23.39469
b,1,a,30.05467
2,d,a,117.22462
a,2,d,31.2650
d,a,2,31.10226
c,d,2,22.0243
2,c,d,130.03142
d,2,c,27.53593
2,a,1,65.55008
a,1,2,67.02494
1,2,a,47.02114
2,1,c,46.38564
1,c,2,66.34547
c,2,1,66.46082
c,1,b,29.58355
1,b,c,120.08311
b,c,1,29.52554