Id pos need_lev int mut,int#int,1 int 1 2#4#6#7#9 1 2 1#3#4#6#8 20 3 1#2#3#5#8 30 4 2#5#7#8#9 40 5 1#3#5#7#9 50 6 2#4#5#6#8 60
