c#include <bits/stdc++.h> using namespace std; int dp[10001]; int main() { cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(false); int N; cin >> N; dp[1] = 1; dp[2] = 0; dp[3] = 1; dp[4] = 1; dp[5] = 1; for(int i = 6; i <= N; i++){ dp[i] = (dp[i - 1] == 0 || dp[i - 3] == 0 || dp[i - 4] == 0) ? 1 : 0; } cout << (dp[N] == 1 ? "SK" : "CY") << "\n"; return 0; }