taskstr=: '17/91 78/85 19/51 23/38 29/33 77/29 95/23 77/19 1/17 11/13 13/11 15/14 15/2 55/1'
taskstr fractran15 2
2 15 825 725 1925 2275 425 390 330 290 770 910 170 156 132