#include using namespace std; const int N = 114514; int a[N], b[N], dp[N]; int main(){ ios::sync_with_stdio(0); cin.tie(0), cout.tie(0); int n, ans = 0; cin >> n; for(int i = 1; i <= n; i++) { cin >> a[i]; } for(int i = 1; i <= n; i++) { dp[i] = 1; for(int j = 1; j * j <= a[i]; j++) { if(a[i] % j == 0) { dp[i] = max(max(dp[i], b[j] + 1), b[a[i] / j] + 1); } } b[a[i]] = max(b[a[i]], dp[i]); ans = max(ans, dp[i]); } cout << ans; return 0; }