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Sell items

Problem Description

A shopkeeper sells daily A units of item and his shop remains closed on weekends(Saturday and Sunday).

Find the number of weeks it will take to sell B units of item.

Assume first day to be Monday and return the ceil value of number of weeks. For eg: If it takes 9 days to sell all units then return 2 weeks.



Problem Constraints

1 <= A, B <= 109



Input Format

First argument is an integer A dentoing the daily units sold by the shopkeeper.

Second argument is an integer B denoting the total units of item.



Output Format

Return an integer denoting the required numbers of weeks.



Example Input

Input 1:

 A = 3
 B = 17

Input 2:

 A = 1
 B = 1



Example Output

Output 1:

 2

Output 2:

 1



Example Explanation

Explanation 1:

 On the first 5 days, shopkeeper can sell 15 units. On next 2 days shop remains closed(weekends). 
 On 8th day sold remaining 2 units. Number of weeks will be 2.

Explanation 2:

 On 1st day, shopkeeper can sell 1 unit. Nothing is remaining. Answer will be 1 week.



NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a question? Checkout Sample Codes for more details.
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