#include #define FOR(i,a,b) for (int i=(a);i<(b);i++) #define FORR(i,a,b) for (int i=(a);i>=(b);i--) #define pb push_back using namespace std; typedef long long ll; typedef pair pii; typedef vector vi; typedef set si; const int inf = 1e9; const int mod = 1e9+7; int n; main(){ cin.tie(0); ios::sync_with_stdio(false); cin >> n; cout << 2017 - n << endl; }