Integers in Python can be as big as the bytes in your machine's memory. There is no limit in size as there is: (c++ int) or (C++ long long int).

As we know, the result of grows really fast with increasing .

Let's do some calculations on very large integers.

Task
Read four numbers, , , , and , and print the result of .

Input Format
Integers , , , and are given on four separate lines, respectively.

Constraints

Output Format
Print the result of on one line.

Sample Input

9
29
7
27

Sample Output

4710194409608608369201743232  

Note: This result is bigger than . Hence, it won't fit in the long long int of C++ or a 64-bit integer.