field turn: int field his_hist: int [] field my_hist: int [] field defect: int field he_is_onechance: int def start() -> void : if turn == 0: defect = 1 he_is_onechance = 1 elseif turn == 1: defect = 0 elseif he_is_onechance && his_hist[turn - 1]: defect = 1 else: defect = 0 he_is_onechance = 0