#include <bits/stdc++.h> using namespace std; int main() { int a,b,c=1; cin >>a>>b; for(int i=1; i<=b; i++) { c=(c*a)%1000; } cout << setfill('0') <<setw(3) << c <<endl; return 0; }

#include <bits/stdc++.h> using namespace std; int main() {long long a,b=1; cin >> a; for(int i=1;i<=a; i++) { b=b*i; } cout << b << endl;

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}