An institutional broker wants to review their book of customers to see which are most active. Given a list of trades by customer name, determine which customers account for at least 5% of the total number of trades. Order the list alphabetically ascending by name.

Alpha

Beta

Delta

Epsilon

Zeta

Explanation:

The customers list should be updated and sorted periodically to identify regular customers and those customers with big orders. There are many customers in the list and the list is not sorted according to alphabetical order. Those customers which account for more than or at least 5% of total trade are Alpha, Beta, Delta, Epsilon and Zeta. These are place first in list among other customers.

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