There's a betting system having 0,1,2,3,4,5,6,7,8,9 sample with winning numbers 0,1 and 2. If any of 0,1 or 2 shows up, the winning amount is 2.2 times the current stake. On a win, the stake is reset to $0.35 and on a loss the staked amount is lost and the next bet is increased by factor 0.5 (i. e if initial bet is $0.35, then on losing, next bet is $0.53 {0.35*0.5+0.35} and so on. please what's the expectancy of this continuous betting system? Is it profitable?