Correction from 1:05
(I forgot to subtract 1 from 9 in P3! :D )
BT
P1 8-1=7
P2 4-1=3
P3 9-1=8
P4 5
And the chart will be:
| P1 | P2 | P3 | P2 | P4 | P1 | P2 |
0 (+1) 1 (+1) 2 (+1) 3 (+3) 6 (+5) 11(+7)18 (+8) 26
-- at 1:20