advance back up start[>] 19822[D!][U][G] 19823[D!][U][G] 19824[D!][U][G] 19825[D!][U][G] 19826[D!][U][G] 19827[D!][U][G] 19828[D!][U][G] 19829[D!][U][G] 19830[D!][U][G] 19831[D!][U][G] 19832[D!][U][G] 19833[D!][U][G] 19834[D!][U][G] 19835[D!][U][G] 19836[D!][U][G] 19837[D!][U][G] 19838[D!][U][G] 19839[D!][U][G] 19840[D!][U][G] 19841[D!][U][G] 19842[D!][U][G] 19843[D!][U][G] 19844[D!][U][G] 19845[D!][U][G] 19846[D!][U][G] 19847[D!][U][G] 19848[D!][U][G] 19849[D!][U][G] 19850[D!][U][G] 19851[D!][U][G] 19852[D!][U][G] 19853[D!][U][G] 19854[D!][U][G] 19855[D!][U][G] 19856[D!][U][G] 19857[D!][U][G] 19858[D!][U][G] 19859[D!][U][G] 19860[D!][U][G] 19861[D!][U][G] 19862[D!][U][G] 19863[D!][U][G] 19864[D!][U][G] 19865[D!][U][G] 19866[D!][U][G] 19867[D!][U][G] 19868[D!][U][G] 19869[D!][U][G] 19870[D!][U][G] 19871[D!][U][G] 19872[D!][U][G] 19873[D!][U][G] 19874[D!][U][G] 19875[D!][U][G] 19876[D!][U][G] 19877[D!][U][G] 19878[D!][U][G] 19879[D!][U][G] 19880[D!][U][G] 19881[D!][U][G] 19882[D!][U][G] 19883[D!][U][G] 19884[D!][U][G] 19885[D!][U][G] 19886[D!][U][G] 19887[D!][U][G] 19888[D!][U][G] 19889[D!][U][G] 19890[D!][U][G] 19891[D!][U][G] 19892[D!][U][G] 19893[D!][U][G] 19894[D!][U][G] 19895[D!][U][G] 19896[D!][U][G] 19897[D!][U][G] 19898[D!][U][G] 19899[D!][U][G] 19900[D!][U][G]