GAAP to non-GAAPreconciliation Gross Profit (in$K) Year Ended January31, Six Months Ended July31, 2017 2018 2017 2018 GAAP GrossProfit 278,982 400,231 183,459 228,197 Add: Stock-based Compensation in Cost ofRevenue 2,211 1,887 958 30,410 Add: Amortization of Intangibles in Cost of Revenue 6,940 6,793 3,388 2,671 Non-GAAP GrossProfit 288,133 408,911 187,805 261,278 Gross Margin (GAAP) 73% 77% 77% 71% Gross Margin (non-GAAP) 76% 79% 79% 81% Subscription Gross Profit (in $K) Year Ended January31, Six Months Ended July31, 2017 2018 2017 2018 GAAP Subscription Revenue 348,563 484,581 224,400 306,659 Less: GAAP Subscription Cost of Revenue (73,363) (83,834) 39,333 55,495 GAAP Subscription GrossProfit 275,200 400,747 185,067 251,164 Add: SBC in Subscription Cost of Revenue 1,190 911 469 11,543 Add: Amortization in Subscription Cost of Revenue 6,940 6,793 3,388 2,671 Non-GAAP Subscription Gross Profit 283,330 408,451 188,924 265,378 Subscription Gross Margin (GAAP) 79% 83% 82% 82% Subscription Gross Margin (Non-GAAP) 81% 84% 84% 87% 34