112. a^b-b^a - Codeforces || You are given natural numbers a and b. Find a^b-b^a. Codeforces

By Md Shoriful Islam

 112. a^b-b^a

https://codeforces.com/problemsets/acmsguru/problem/99999/112

time limit per test: 0.25 sec.

memory limit per test: 4096 KB


You are given natural numbers a and b. Find a^b-b^a. 


Input

Input contains numbers a and b (1≤a,b≤100).


Output

Write answer to output.


Sample Input

2 3

Sample Output

-1


Solution Code: C++

#include <iostream>
#include <cmath>
// solved the problem but not accepted with this code...
// i got accepted with the python code.
int main() {
int a, b;
std::cin >> a >> b;

long long pa = pow(a, b);
long long pb = pow(b, a);

std::cout << pa - pb << std::endl;

return 0;
}


Solution Code: Python 3

# Accepted
a,b=map(int,input().split())

pa=pow(a,b)
pb=pow(b,a)

print(pa-pb)

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