DB<4> say join ':', $_,$d*=1.25,$xp+=$d for 23..28
23:12500:52500
24:15625:68125
25:19531.25:87656.25
26:24414.0625:112070.3125
27:30517.578125:142587.890625
28:38146.97265625:180734.86328125