Based on the news about the stock in the past five trading days, please predict the rise or fall of the stock in the next trading day. If the stock is predicted to rise in the next trading day, please output [Rise], if the stock is predicted to fall in the next trading day, please output [Decrease].

Date:2021-08-20, Stock:MA, The news for the past five days is as follows:
2021-08-13: nan
2021-08-16: NEWS1: 2021 Global Inclusive Growth Summit: Rebuilding for All - Register October 14th, 2021.
2021-08-17: NEWS1: Mastercard to phase out magnetic strips on cards by 2033.NEWS2: Mastercard to ditch magnetic strips on payment cards from 2024.
2021-08-18: NEWS1: UK court sets scene for $14 billion-plus class action against Mastercard.NEWS2: UK court sets scene for $14 bln-plus class action against Mastercard.NEWS3: Mastercard is changing credit cards as we know them.NEWS4: Follow in Buffett's Footsteps by Retaining 3 Payment Stocks.
2021-08-19: NEWS1: Mastercard set to face UK’s largest class action over fees.NEWS2: Disruptor Alert: These 3 Companies Are Changing the Financial Sector.NEWS3: RPT-UK court sets scene for $14 bln-plus class action against Mastercard.NEWS4: Mastercard faces biggest UK class-action lawsuit.

Answer: Decrease