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#include<iostream>
#include<string>
#include<sstream>
#include<cstring>
int factorial(int n)
{
if(n == 0) return 1;
else return n * factorial(n-1);
}
bool factorions(int n)
{
unsigned sum = 0;
int copy = n;
do{
sum += factorial(copy % 10);
copy /= 10;
}while(copy != 0);
return sum == n;
}
int main(int argc, char *argv[])
{
if(!argv[1] || strlen(argv[1]) == 0)
{
std::cerr << "No args provided!\n";
exit(1);
}
std::stringstream ss(argv[1]);
int num;
if(!(ss >> num))
{
std::cout << "error converting number!\n";
exit(1);
}
std::cout << std::boolalpha << factorions(num) << ' ';
std::cout << '\n';
return 0;
}
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