Codeforces 468C Hack it!

https://www.luogu.org/problemnew/show/CF468C

http://codeforces.com/contest/468/problem/C

 #include <iostream>
 typedef long long ll;
 const ll inf = 1e18;
 ll l, r, mo;
 int main() {
     std::cin >> mo;
     l = mo - inf % mo *  % mo *  % mo;
     r = l + inf - ;
     std::cout << l << " " << r;
 }