a,53743.136,61003.826
b,47943.002,66225.854
c,40049.229,53782.790
d,36924.728,61027.086
******************
1,48580.2674,60500.5005
2,48681.3806,55018.2883
3,43767.1890,57968.6068
4,40843.3222,64867.9795
*******************
1,b,9
1,a,8
2,a,10
1,2,12
2,3,21
2,c,9
c,3,12
d,3,13
3,4,15
1,3,24
d,4,21
1,4,8
b,4,6