// #define _GLIBCXX_DEBUG #include using namespace std; #include using namespace atcoder; using ll = long long; #define rep(i,n) for (ll i = 0; i < (n); ++i) using vl = vector; using vvl = vector; using P = pair; #define pb push_back #define int long long #define double long double #define INF (ll) 3e18 // Ctrl + Shift + B コンパイル // Ctrl + C 中断 // ./m 実行 signed main(){ int n; cin >> n; int sum = 0; vl a(n); rep(i,n) cin >> a[i]; rep(i,n-1){ if ((a[i] - a[i+1]) % n){ cout << "No" << endl; return 0; } } cout << "Yes" << endl; }