advance back up start[>] 12849[D!][U][G] 12850[D!][U][G] 12851[D!][U][G] 12852[D!][U][G] 12853[D!][U][G] 12854[D!][U][G] 12855[D!][U][G] 12856[D!][U][G] 12857[D!][U][G] 12858[D!][U][G] 12859[D!][U][G] 12860[D!][U][G] 12861[D!][U][G] 12862[D!][U][G] 12863[D!][U][G] 12864[D!][U][G] 12865[D!][U][G] 12866[D!][U][G] 12867[D!][U][G] 12868[D!][U][G] 12869[D!][U][G] 12870[D!][U][G] 12871[D!][U][G] 12872[D!][U][G] 12873[D!][U][G] 12874[D!][U][G] 12875[D!][U][G] 12876[D!][U][G] 12877[D!][U][G] 12878[D!][U][G] 12879[D!][U][G] 12880[D!][U][G] 12881[D!][U][G] 12882[D!][U][G] 12883[D!][U][G] 12884[D!][U][G] 12885[D!][U][G] 12886[D!][U][G] 12887[D!][U][G] 12888[D!][U][G] 12889[D!][U][G] 12890[D!][U][G]