找到 a^b 的最后一位

Question

The problem consist in find the last digit of the potency of base a and index b. Given two integer numbers: the base a (0 <= a <= 20) and the index b (0 <= b <= 2,147,483,000), a and b both are not 0. Find the last digit of a^b.

Input

The first line of input contains an integer t, the number of test cases (t <= 30). t test cases follow. For each test case will appear a and b separated by space.

Output

For each test case output an integer per line representing the result.

Example

Input: 2 3 10 6 2

Output: 9 6

Here is my code in python 2

n= int(raw_input())
for i in range(n):
    arr = map(int,raw_input().split())
    x = pow(arr[0],arr[1])
    print x%10

Answer 1

The problem consist in find the last digit of the potency of base a and index b. Given two integer numbers: the base a (0 <= a <= 20) and the index b (0 <= b <= 2,147,483,000), a and b both are not 0. Find the last digit of a^b.

Input

The first line of input contains an integer t, the number of test cases (t <= 30). t test cases follow. For each test case will appear a and b separated by space.

Output

For each test case output an integer per line representing the result.

Example

Input: 2 3 10 6 2

Output: 9 6

Here is my code in python 2

n= int(raw_input())
for i in range(n):
    arr = map(int,raw_input().split())
    x = pow(arr[0],arr[1])
    print x%10

Answer 2

The problem consist in find the last digit of the potency of base a and index b. Given two integer numbers: the base a (0 <= a <= 20) and the index b (0 <= b <= 2,147,483,000), a and b both are not 0. Find the last digit of a^b.

Input

The first line of input contains an integer t, the number of test cases (t <= 30). t test cases follow. For each test case will appear a and b separated by space.

Output

For each test case output an integer per line representing the result.

Example

Input: 2 3 10 6 2

Output: 9 6

Here is my code in python 2

n= int(raw_input())
for i in range(n):
    arr = map(int,raw_input().split())
    x = pow(arr[0],arr[1])
    print x%10