题目描述
A disease is spreading through ChefLand!
The disease spreads as follows:
At the end of day 0, a single person is infected with the disease.
During the next 10 days, the number of infected people doubles each day, until the disease has spread to all people in ChefLand.
From day 11 onwards, the number of infected people triples each day, until the disease has spread to all people in ChefLand.
You are given the population of ChefLand N and a day D. How many people in ChefLand are infected at the end of day D?
------ Input Format ------
- The first line of input contains a single integer T, denoting the number of test cases. The description of T test cases follows.
- Each test case consists of a single line containing two space-separated integers N and D — the population of ChefLand and the day for which you need to find the number of infected people, respectively.
------ Output Format ------
- For each test case, print one line containing a single integer — the number of infected people in ChefLand at the end of day D.
------ Constraints ------
$1 ≤ T ≤ 300$
$1 ≤ N ≤ 10^{8}$
$0 ≤ D ≤ 10^{8}$
------ subtasks ------
Subtask 1 (30 points): $D ≤ 20$
Subtask 2 (70 points): Original constraints
----- Sample Input 1 ------
4
100 3
2000 10
6000 11
10 11
----- Sample Output 1 ------
8
1024
3072
10
----- explanation 1 ------
Test Case 1:
- At the end of day $1$, the number of infected people is $2 \times 1 = 2$.
- At the end of day $2$, the number of infected people is $2 \times 2 = 4$.
- At the end of day $3$, the number of infected people is $2 \times 4 = 8$.
Test Case 2: Following the rules in the statement, it can be seen that at the end of day $10$, the total number of infected people is $1024$.
Test Case 3: Note that starting at day $11$, the number of infected people triples each day, $3 \times 1024 = 3072$.
Test Case 4: At the end of day $3$, the number of infected people is $8$. Since there are only $10$ people in ChefLand (which is less than $2 \times 8 = 16$), at the end of day $4$ all people in ChefLand are infected and thus the number of infected people is $10$ for all days from day $4$ onwards, including day $11$.
输入格式
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输出格式
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