i = 0 sum = 100000000
i = 1 sum = 200000000
i = 2 sum = 300000000
i = 3 sum = 400000000
i = 4 sum = 500000000
i = 5 sum = 600000000
i = 6 sum = 700000000
i = 7 sum = 800000000
i = 8 sum = 900000000
i = 9 sum = 1000000000
i = 10 sum = 1100000000
i = 11 sum = 1200000000
i = 12 sum = 1300000000
i = 13 sum = 1400000000
i = 14 sum = 1500000000
i = 15 sum = 1600000000
i = 16 sum = 1700000000
i = 17 sum = 1800000000
i = 18 sum = 1900000000
i = 19 sum = 2000000000
i = 20 sum = 2100000000
i = 21 sum = 2200000000
i = 22 sum = 2300000000
i = 23 sum = 2400000000
i = 24 sum = 2500000000
i = 25 sum = 2600000000
i = 26 sum = 2700000000
i = 27 sum = 2800000000
i = 28 sum = 2900000000
i = 29 sum = 3000000000